My toddler does fine the first couple of days. Then they don't come home and whenever I click leave school early, it still shows them in school. The only difference is that the interactions you can do with them while in preschool is gone. I hope someone has the answer because I love this mod and it gives my sim a much needed break to do household chores or to relax.
The dehydration moodlet does not disappear when a sim drinks water from a cooler.