Some of em do, but even when they do their beetus barge parents ignore them and abuse the shit out of them to force feed them more.  Little Billy isn't eating all his two order BicMac meals? He gets the belt. And then he had to eat them all AND have a milkshake because it'll make him "a big strong boy". Or Emily will be ridiculed for liking the taste of carrots (which she ate for the first time at a friend's house because her own mom won't have that rabbit food in the house) and she'll be forced to eat bacon Mac and cheese out of the pot or starve.  Fats are the fucking worst parents.