One more. DS4 and DS6 both asked for an apple yesterday. DS4 happily snatched his apple and ran off. DS6 looked at the apple, then looked at me. "You need to cut it up" he said. I said to him "Your 4 yo brother doesn't need it cut up, he eats a whole apple just fine, you can too". I started back to what I was doing. Next thing I know DS6 is back in front of me with the apple. "Mom, that's the point, he's only 4" "He hasn't gotten to the part where his teeth start falling out yet, DUH!" DS6 is missing his bottom teeth and therefore can't bite his apple! DUH!
