It really depends...on the item and the kid! DD is an eater (8) and always finished her meal. DS (9) rarely did. Some items I know they couldn;t share, even at 5. The pizza, for instance, at Pop FC is tiny. Do your kids eat sides like grapes, applesauce, fries, pudding, etc (some of the choices offered)? That could plump up a meal, but my ds doesn't like grapes and sometimes that and a cookie were the only sides. Adult CS meals, on the other hand, we almost always too big- you could always share with a child there, too.