I would call it a bug, as it is not realistic to how
A) players would expect it to work
B) real world workers would behave (excluding being paid extra by the wealthy to serve them first)
I do have another one building but it is slow going as I am not keeping up on planks with demand. i need to pause my city’s growth and just catch up on raw resources for a bit.
I also had a feature suggestion for nightsoil anyway: Nightsoil composter should have upgrade tiers, and more workforce