High chairs are a nightmare. At this point I don't even give toddlers meals. I just put a bunch fruit in their inventory and they sustain themselves on pears until they're children. The game always stresses me out with toddlers, like you said. Like the first time they get hunger that's orange it's like "blah blah is just a helpless toddler" and I'm like I KNOW but I've been trying to put blah blah in his high chair for an hour and my Sim has to walk up and down the stairs a bazillion times before I even get there. ? So now they just eat fruit. High chairs really need fixing, and I don't know why some of the most glaring issues aren't fixed yet, between this and the time slow down when my Sims sleep, some sim days are just nightmarish.