Also, don't dwarves poop? For a game that emphasizes the nitty-gritty as much as DF, I'm surprised toilets aren't introduced yet. It would create the need for a plumbing system, properly engineered otherwise poo would end up in the freshwater supply.
Because it wouldn't be fun. It's been addressed several times in dedicated threads and so far no one has mentioned why it would be fun or how to make it fun. To that I ask, are there any games that already deal with waste in a fun manner?
- Vomit is already in the game, in quantities that put Poltergeist to shame, and it is often named as a vital part of the DF experience.
- Excretions must play a vital role in any kind of fortress trying to approach self-sufficiency. (otherwise, how would you survive a siege? - and I mean a siege, not the tea-visits we get now.)
- Dwarven and animal manure can be gainfully husbanded in an almost zero-nutrient environment (freshly dug rock). It has to find its way to the farm plots, either by keeping the animals on top of them, or as part of the farmer job, with a bucket/wheelbarrow and a shovel.
Alternatively, you can flood the farms grounds with a muddy river, or fertilize it with ashes/potash. Manure, however, is readily available, and doesn't need so much dwarf-power/fuel as the potash option, nor does it require the availability of a suitably placed river.
- Urine has historically been used for tanning and dyeing, jobs already in
the game. It would be very easy to implement an extra requirement or quality-improving option.
- Dealing with the miasme consequently caused by those industries poses another interesting organisational challenge, just like the collection.
- We're suggesting to put those in the game as commodities, not to let insane dwarves smear the walls with it. Also, you can have a [infinite_intestines] tag if you wish.