It's because humans in the vanilla raws lack many of the entity tags that allow those things to be possible. It's as easy as a single tag to embark as them, a bit harder to actually be able to do everything reasonably.
You'll want to take some of the tags under [ENTITY:MOUNTAIN] and copy them into the human block. For nobles it's all of this
[LAND_HOLDER_TRIGGER:1:20:10000:100000]
[LAND_HOLDER_TRIGGER:2:20:20000:200000]
[LAND_HOLDER_TRIGGER:3:20:30000:300000]
[POSITION:MONARCH]
[NAME_MALE:king:kings]
[NAME_FEMALE:queen:queens]
[NUMBER:1]
[SPOUSE_MALE:king consort:kings consort]
[SPOUSE_FEMALE:queen consort:queens consort]
[SUCCESSION:BY_HEIR]
[RESPONSIBILITY:LAW_MAKING]
[RESPONSIBILITY:RECEIVE_DIPLOMATS]
[RESPONSIBILITY:MILITARY_GOALS]
[PRECEDENCE:1]
[RULES_FROM_LOCATION]
[MENIAL_WORK_EXEMPTION]
[MENIAL_WORK_EXEMPTION_SPOUSE]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[FLASHES]
[BRAG_ON_KILL]
[CHAT_WORTHY]
[DO_NOT_CULL]
[KILL_QUEST]
[EXPORTED_IN_LEGENDS]
[DETERMINES_COIN_DESIGN]
[COLOR:5:0:1]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[DEMAND_MAX:10]
[MANDATE_MAX:5]
[REQUIRED_BOXES:10]
[REQUIRED_CABINETS:5]
[REQUIRED_RACKS:5]
[REQUIRED_STANDS:5]
[REQUIRED_OFFICE:10000]
[REQUIRED_BEDROOM:10000]
[REQUIRED_DINING:10000]
[REQUIRED_TOMB:10000]
[POSITION:GENERAL]
[NAME:general:generals]
[NUMBER:1]
[SQUAD:10:soldier:soldiers]
[APPOINTED_BY:MONARCH]
[RESPONSIBILITY:MILITARY_STRATEGY]
[COMMANDER:LIEUTENANT:ALL]
[PRECEDENCE:50]
[MENIAL_WORK_EXEMPTION]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[FLASHES]
[BRAG_ON_KILL]
[CHAT_WORTHY]
[DO_NOT_CULL]
[KILL_QUEST]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[DEMAND_MAX:2]
[REQUIRED_BOXES:2]
[REQUIRED_CABINETS:1]
[REQUIRED_RACKS:3]
[REQUIRED_STANDS:3]
[REQUIRED_OFFICE:500]
[REQUIRED_BEDROOM:250]
[REQUIRED_DINING:250]
[REQUIRED_TOMB:1]
[POSITION:LIEUTENANT]
[NAME:lieutenant:lieutenants]
[NUMBER:AS_NEEDED]
[SQUAD:10:soldier:soldiers]
[APPOINTED_BY:GENERAL]
[COMMANDER:CAPTAIN:ALL]
[PRECEDENCE:100]
[MENIAL_WORK_EXEMPTION]
[FLASHES]
[BRAG_ON_KILL]
[CHAT_WORTHY]
[DO_NOT_CULL]
[KILL_QUEST]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[DEMAND_MAX:1]
[REQUIRED_BOXES:1]
[REQUIRED_CABINETS:1]
[REQUIRED_RACKS:2]
[REQUIRED_STANDS:2]
[REQUIRED_OFFICE:100]
[REQUIRED_BEDROOM:100]
[REQUIRED_DINING:100]
[MILITARY_SCREEN_ONLY]
[POSITION:CAPTAIN]
[NAME:captain:captains]
[NUMBER:AS_NEEDED]
[SQUAD:10:soldier:soldiers]
[APPOINTED_BY:GENERAL]
[PRECEDENCE:190]
[DO_NOT_CULL]
[DUTY_BOUND]
[REQUIRED_BOXES:1]
[REQUIRED_CABINETS:1]
[REQUIRED_RACKS:1]
[REQUIRED_STANDS:1]
[REQUIRED_OFFICE:1]
[REQUIRED_BEDROOM:1]
[REQUIRED_DINING:1]
[MILITARY_SCREEN_ONLY]
[POSITION:MILITIA_COMMANDER]
[NAME:militia commander:militia commanders]
[SITE]
[NUMBER:1]
[SQUAD:10:militia-dwarf:militia-dwarves]
[APPOINTED_BY:EXPEDITION_LEADER]
[APPOINTED_BY:MAYOR]
[RESPONSIBILITY:MILITARY_STRATEGY]
[COMMANDER:MILITIA_CAPTAIN:ALL]
[PRECEDENCE:120]
[DO_NOT_CULL]
[DUTY_BOUND]
[POSITION:MILITIA_CAPTAIN]
[NAME:militia captain:militia captains]
[SITE]
[NUMBER:AS_NEEDED]
[SQUAD:10:militia-dwarf:militia-dwarves]
[APPOINTED_BY:MILITIA_COMMANDER]
[PRECEDENCE:200]
[DO_NOT_CULL]
[DUTY_BOUND]
[MILITARY_SCREEN_ONLY]
[POSITION:SHERIFF]
[NAME:sheriff:sheriffs]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:LAW_ENFORCEMENT]
[APPOINTED_BY:EXPEDITION_LEADER]
[APPOINTED_BY:MAYOR]
[REPLACED_BY:CAPTAIN_OF_THE_GUARD]
[PRECEDENCE:130]
[DO_NOT_CULL]
[COLOR:1:0:1]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[REQUIRED_BOXES:1]
[REQUIRED_CABINETS:1]
[REQUIRED_RACKS:1]
[REQUIRED_STANDS:1]
[REQUIRED_OFFICE:100]
[REQUIRED_BEDROOM:100]
[REQUIRED_DINING:100]
[POSITION:CAPTAIN_OF_THE_GUARD]
[NAME:captain of the guard:captains of the guard]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:LAW_ENFORCEMENT]
[SQUAD:10:fortress guard:fortress guards]
[APPOINTED_BY:EXPEDITION_LEADER]
[APPOINTED_BY:MAYOR]
[REQUIRES_POPULATION:50]
[PRECEDENCE:105]
[DO_NOT_CULL]
[COLOR:1:0:1]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[REQUIRED_BOXES:1]
[REQUIRED_CABINETS:1]
[REQUIRED_RACKS:1]
[REQUIRED_STANDS:1]
[REQUIRED_OFFICE:250]
[REQUIRED_BEDROOM:250]
[REQUIRED_DINING:250]
[POSITION:EXPEDITION_LEADER]
[NAME:expedition leader:expedition leaders]
[SITE]
[NUMBER:1]
[REPLACED_BY:MAYOR]
[RULES_FROM_LOCATION]
[RESPONSIBILITY:MEET_WORKERS]
[RESPONSIBILITY:RECEIVE_DIPLOMATS]
[RESPONSIBILITY:MILITARY_GOALS]
[PRECEDENCE:110]
[DO_NOT_CULL]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[POSITION:MAYOR]
[NAME:mayor:mayors]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:MEET_WORKERS]
[RESPONSIBILITY:RECEIVE_DIPLOMATS]
[RESPONSIBILITY:MILITARY_GOALS]
[REQUIRES_POPULATION:50]
[RULES_FROM_LOCATION]
[ELECTED]
[PRECEDENCE:60]
[FLASHES]
[BRAG_ON_KILL]
[CHAT_WORTHY]
[DO_NOT_CULL]
[KILL_QUEST]
[COLOR:5:0:0]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[DEMAND_MAX:2]
[MANDATE_MAX:1]
[REQUIRED_BOXES:2]
[REQUIRED_CABINETS:1]
[REQUIRED_RACKS:1]
[REQUIRED_STANDS:1]
[REQUIRED_OFFICE:500]
[REQUIRED_BEDROOM:500]
[REQUIRED_DINING:500]
[POSITION:MANAGER]
[NAME:manager:managers]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:MANAGE_PRODUCTION]
[APPOINTED_BY:EXPEDITION_LEADER]
[APPOINTED_BY:MAYOR]
[PRECEDENCE:160]
[DO_NOT_CULL]
[COLOR:5:0:0]
[DUTY_BOUND]
[REQUIRED_OFFICE:1]
[POSITION:CHIEF_MEDICAL_DWARF]
[NAME:chief medical dwarf:chief medical dwarves]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:HEALTH_MANAGEMENT]
[APPOINTED_BY:EXPEDITION_LEADER]
[APPOINTED_BY:MAYOR]
[PRECEDENCE:165]
[DO_NOT_CULL]
[COLOR:5:0:0]
[DUTY_BOUND]
[POSITION:BROKER]
[NAME:broker:brokers]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:TRADE]
[APPOINTED_BY:EXPEDITION_LEADER]
[APPOINTED_BY:MAYOR]
[PRECEDENCE:170]
[DO_NOT_CULL]
[COLOR:5:0:0]
[DUTY_BOUND]
[POSITION:BOOKKEEPER]
[NAME:bookkeeper:bookkeepers]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:ACCOUNTING]
[APPOINTED_BY:EXPEDITION_LEADER]
[APPOINTED_BY:MAYOR]
[PRECEDENCE:180]
[DO_NOT_CULL]
[COLOR:5:0:0]
[DUTY_BOUND]
[REQUIRED_OFFICE:1]
[POSITION:OUTPOST_LIAISON]
[NAME:outpost liaison:outpost liaisons]
[NUMBER:1]
[RESPONSIBILITY:ESTABLISH_COLONY_TRADE_AGREEMENTS]
[APPOINTED_BY:MONARCH]
[PRECEDENCE:80]
[MENIAL_WORK_EXEMPTION]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[ACCOUNT_EXEMPT]
[DO_NOT_CULL]
[COLOR:7:0:1]
[DUTY_BOUND]
[DEMAND_MAX:3]
[REQUIRED_BOXES:3]
[REQUIRED_CABINETS:2]
[REQUIRED_RACKS:2]
[REQUIRED_STANDS:2]
[REQUIRED_OFFICE:1500]
[REQUIRED_BEDROOM:1500]
[REQUIRED_DINING:1500]
[POSITION:DIPLOMAT]
[NAME:diplomat:diplomats]
[NUMBER:1]
[RESPONSIBILITY:MAKE_INTRODUCTIONS]
[RESPONSIBILITY:MAKE_PEACE_AGREEMENTS]
[RESPONSIBILITY:MAKE_TOPIC_AGREEMENTS]
[APPOINTED_BY:MONARCH]
[PRECEDENCE:70]
[DO_NOT_CULL]
[COLOR:7:0:1]
[MENIAL_WORK_EXEMPTION]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[DEMAND_MAX:3]
[REQUIRED_BOXES:3]
[REQUIRED_CABINETS:2]
[REQUIRED_RACKS:2]
[REQUIRED_STANDS:2]
[REQUIRED_OFFICE:1500]
[REQUIRED_BEDROOM:1500]
[REQUIRED_DINING:1500]
[POSITION:DUKE]
[NAME_MALE:duke:dukes]
[NAME_FEMALE:duchess:duchesses]
[SPOUSE_MALE:duke consort:dukes consort]
[SPOUSE_FEMALE:duchess consort:duchesses consort]
[SITE]
[LAND_HOLDER:3]
[LAND_NAME:a duchy]
[RESPONSIBILITY:LAW_MAKING]
[RESPONSIBILITY:RECEIVE_DIPLOMATS]
[SUCCESSION:BY_HEIR]
[APPOINTED_BY:MONARCH]
[PRECEDENCE:20]
[MENIAL_WORK_EXEMPTION]
[MENIAL_WORK_EXEMPTION_SPOUSE]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[FLASHES]
[BRAG_ON_KILL]
[CHAT_WORTHY]
[DO_NOT_CULL]
[KILL_QUEST]
[COLOR:5:0:0]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[DEMAND_MAX:5]
[MANDATE_MAX:3]
[REQUIRED_BOXES:5]
[REQUIRED_CABINETS:3]
[REQUIRED_RACKS:3]
[REQUIRED_STANDS:3]
[REQUIRED_OFFICE:2500]
[REQUIRED_BEDROOM:2500]
[REQUIRED_DINING:2500]
[REQUIRED_TOMB:2500]
[POSITION:COUNT]
[NAME_MALE:count:counts]
[NAME_FEMALE:countess:countesses]
[SPOUSE_MALE:count consort:counts consort]
[SPOUSE_FEMALE:countess consort:countesses consort]
[SITE]
[LAND_HOLDER:2]
[LAND_NAME:a county]
[RESPONSIBILITY:LAW_MAKING]
[RESPONSIBILITY:RECEIVE_DIPLOMATS]
[SUCCESSION:BY_HEIR]
[APPOINTED_BY:MONARCH]
[REPLACED_BY:DUKE]
[PRECEDENCE:30]
[MENIAL_WORK_EXEMPTION]
[MENIAL_WORK_EXEMPTION_SPOUSE]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[FLASHES]
[BRAG_ON_KILL]
[CHAT_WORTHY]
[DO_NOT_CULL]
[KILL_QUEST]
[COLOR:5:0:0]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[DEMAND_MAX:3]
[MANDATE_MAX:2]
[REQUIRED_BOXES:3]
[REQUIRED_CABINETS:2]
[REQUIRED_RACKS:2]
[REQUIRED_STANDS:2]
[REQUIRED_OFFICE:1500]
[REQUIRED_BEDROOM:1500]
[REQUIRED_DINING:1500]
[REQUIRED_TOMB:1500]
[POSITION:BARON]
[NAME_MALE:baron:barons]
[NAME_FEMALE:baroness:baronesses]
[SPOUSE_MALE:baron consort:barons consort]
[SPOUSE_FEMALE:baroness consort:baronesses consort]
[SITE]
[LAND_HOLDER:1]
[LAND_NAME:a barony]
[RESPONSIBILITY:LAW_MAKING]
[RESPONSIBILITY:RECEIVE_DIPLOMATS]
[SUCCESSION:BY_HEIR]
[APPOINTED_BY:MONARCH]
[REPLACED_BY:COUNT]
[PRECEDENCE:40]
[MENIAL_WORK_EXEMPTION]
[MENIAL_WORK_EXEMPTION_SPOUSE]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[FLASHES]
[BRAG_ON_KILL]
[CHAT_WORTHY]
[DO_NOT_CULL]
[KILL_QUEST]
[COLOR:5:0:0]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[DEMAND_MAX:2]
[MANDATE_MAX:1]
[REQUIRED_BOXES:2]
[REQUIRED_CABINETS:1]
[REQUIRED_RACKS:1]
[REQUIRED_STANDS:1]
[REQUIRED_OFFICE:500]
[REQUIRED_BEDROOM:500]
[REQUIRED_DINING:500]
[REQUIRED_TOMB:500]
[POSITION:CHAMPION]
[NAME:champion:champions]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:BUILD_MORALE]
[APPOINTED_BY:DUKE]
[APPOINTED_BY:COUNT]
[APPOINTED_BY:BARON]
[PRECEDENCE:65]
[MENIAL_WORK_EXEMPTION]
[PUNISHMENT_EXEMPTION]
[DO_NOT_CULL]
[COLOR:7:0:1]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[DEMAND_MAX:1]
[POSITION:TAX_COLLECTOR]
[NAME:tax collector:tax collectors]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:COLLECT_TAXES]
[APPOINTED_BY:DUKE]
[APPOINTED_BY:COUNT]
[APPOINTED_BY:BARON]
[PRECEDENCE:140]
[DO_NOT_CULL]
[COLOR:6:0:1]
[ACCOUNT_EXEMPT]
[MENIAL_WORK_EXEMPTION]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[DUTY_BOUND]
[DEMAND_MAX:1]
[MANDATE_MAX:1]
[REQUIRED_BOXES:2]
[REQUIRED_CABINETS:1]
[REQUIRED_RACKS:1]
[REQUIRED_STANDS:1]
[REQUIRED_OFFICE:250]
[REQUIRED_BEDROOM:100]
[REQUIRED_DINING:100]
[POSITION:HAMMERER]
[NAME:hammerer:hammerers]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:EXECUTIONS]
[RESPONSIBILITY:ESCORT_TAX_COLLECTOR]
[APPOINTED_BY:DUKE]
[APPOINTED_BY:COUNT]
[APPOINTED_BY:BARON]
[SQUAD:10:royal guard:royal guards]
*** needs hammer item/skill here
[PRECEDENCE:150]
[DO_NOT_CULL]
[COLOR:0:0:1]
[ACCOUNT_EXEMPT]
[MENIAL_WORK_EXEMPTION]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[DUTY_BOUND]
[DEMAND_MAX:2]
[REQUIRED_BOXES:1]
[REQUIRED_CABINETS:1]
[REQUIRED_RACKS:1]
[REQUIRED_STANDS:1]
[REQUIRED_BEDROOM:100]
[REQUIRED_DINING:250]
[POSITION:DUNGEON_MASTER]
[NAME:dungeon master:dungeon masters]
[SITE]
[NUMBER:1]
[RESPONSIBILITY:TAME_EXOTICS]
[APPOINTED_BY:DUKE]
[APPOINTED_BY:COUNT]
[APPOINTED_BY:BARON]
[PRECEDENCE:90]
[MENIAL_WORK_EXEMPTION]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[DO_NOT_CULL]
[COLOR:5:0:0]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[DEMAND_MAX:1]
[REQUIRED_BOXES:1]
[REQUIRED_CABINETS:1]
[REQUIRED_RACKS:1]
[REQUIRED_STANDS:1]
[REQUIRED_OFFICE:250]
[REQUIRED_BEDROOM:250]
[REQUIRED_DINING:250]
[REQUIRED_TOMB:250]
[POSITION:FORCED_ADMINISTRATOR]
[NAME:administrator:administrators]
[CONQUERED_SITE]
[FLASHES]
[BRAG_ON_KILL]
[CHAT_WORTHY]
[DO_NOT_CULL]
[KILL_QUEST]
[EXPORTED_IN_LEGENDS]
[DETERMINES_COIN_DESIGN]
[MENIAL_WORK_EXEMPTION]
[SLEEP_PRETENSION]
[PUNISHMENT_EXEMPTION]
[ACCOUNT_EXEMPT]
[DUTY_BOUND]
[COLOR:5:0:0]
[MANDATE_MAX:2]
[DEMAND_MAX:3]
[PRECEDENCE:65]
[NUMBER:1]
[RESPONSIBILITY:LAW_MAKING]
[RESPONSIBILITY:RECEIVE_DIPLOMATS]
[RESPONSIBILITY:MAKE_TOPIC_AGREEMENTS]
[RESPONSIBILITY:MEET_WORKERS]
But you will also need to remove the [VARIABLE_POSITIONS:ALL] near the end of the human block.
Also helpful would be
[SIEGEAMMO:ITEM_SIEGEAMMO_BALLISTA]
[TRAPCOMP:ITEM_TRAPCOMP_GIANTAXEBLADE]
[TRAPCOMP:ITEM_TRAPCOMP_ENORMOUSCORKSCREW]
[TRAPCOMP:ITEM_TRAPCOMP_SPIKEDBALL]
[TRAPCOMP:ITEM_TRAPCOMP_LARGESERRATEDDISC]
[TRAPCOMP:ITEM_TRAPCOMP_MENACINGSPIKE]
[TOY:ITEM_TOY_PUZZLEBOX]
[TOY:ITEM_TOY_BOAT]
[TOY:ITEM_TOY_HAMMER]
[TOY:ITEM_TOY_AXE]
[TOY:ITEM_TOY_MINIFORGE]
[INSTRUMENT:ITEM_INSTRUMENT_FLUTE]
[INSTRUMENT:ITEM_INSTRUMENT_TRUMPET]
[INSTRUMENT:ITEM_INSTRUMENT_HARP]
[INSTRUMENT:ITEM_INSTRUMENT_DRUM]
[INSTRUMENT:ITEM_INSTRUMENT_PICCOLO]
[TOOL:ITEM_TOOL_NEST_BOX]
[TOOL:ITEM_TOOL_JUG]
[TOOL:ITEM_TOOL_LARGE_POT]
[TOOL:ITEM_TOOL_HIVE]
[PERMITTED_REACTION:ADAMANTINE_WAFERS]
[PERMITTED_REACTION:PIG_IRON_MAKING]
[PERMITTED_REACTION:STEEL_MAKING]
because those are other things missing from the human entity that you may not have encountered yet.
Where you put them is largely unimportant as long as they are under [ENTITY:PLAINS] and before [ENTITY:EVIL] You can put them near like tags for neatness and readability, but the game shouldn't care. (don't put any of the stuff from the second spoiler in between any of the stuff in the first spoiler though. The tags underneath the name of a noble determine how that noble behaves, and it might get confused if it gets tags it dosn't expect there)
P.S. this was a quickie. I may have missed an important tag or two. But that should be an improvement.