My stepson is 11 in a few months and only eats the middle of his sandwiches and then is hungry 1 hour after lunch and grazes on snacks all day. I don't understand why, at nearly 11, he is having his crusts cut off or being allowed to leave them. Is this normal? Do lots of people leave their crusts? Fyi he doesn't have any problems with swallowing or have any allergies.