I would like to say very quickly: Sims is a whimsical game for doing bizarre, funny and morbid scenarios, from feeding grandmothers to cowplants to woohooing as many occults as possible. No judgement for creative playstyles from me, and hopefully not from others either.
The best solution I can think of, does not solve 100% but a good deal anyway: lock men of the household out of the kitchen and nursery, and perhaps lock toddlers into a nursery. Neither sounds very nice but hey, it'd the dark ages. :D Also perhaps place your laundry into the kitchen too, or lock a separate laundry room from the menfolk.
