Game designer?

My cousin is 7. He is into anything computer or console game related. He's told us many times that he's going to be a game designer when he grows up.
Last weekend, he was snacking on various junk food items at my grandma's house during a birthday party. I teasingly said, "You know, you should really do yourself a favor and learn to eat healthy now, because when you're my age that stuff will catch up with you and you'll get fat."
He looked at me and in a very serious tone said, "If I'm working behind the scenes as a game designer, my appearance shouldn't matter."