You can build and then remove wooden (or other) stair, which is somewhat like a scaffold. There isn't a notion of climbing something yet, so an actual scaffold might have to wait. I don't have ladders or anything like that either.
I became less worried about the siege exploits caused by rewalling because of the way that channels now work. You can just block out invaders by digging a giant ditch now. As I work through the army stuff after the next release, I'll have to teach them how to work within an arbitrary 3D environment.
The idea was always to release when the game is playable. People shouldn't trick themselves into thinking it'll be any slicker than the current trainwreck. I am throwing in strictly unnecessary things, like rewalling, but water availability, broken trade/migration and some pathing issues are the main outstanding problems, maybe some others.
I've mentioned the possiblity of releasing on Aug 8 on IRC once I think. I'd just like to finish my list, and I'll probably miss that date by a bit.
When I talk about migrant children not hanging out in the mead hall, I'm talking about the new migrant groups arriving at adv mode human towns. The mead hall becomes glutted and hard to walk through because of the children and horses, and yeah, the impression was that it was a place where some hairy drunk warrior could yell "this is no place for children!". They should play outside or something, unless they'd just freeze to death, which they do inside now anyway.