kids can play as either and it has nothing to do with future sexual preference. chill out people. let your kids play. and also, to all you haters: even if it did mean something about future sexual preference, WHO CARES?
It's a transgender thing. Some guys are born in the body of a girl and the other way around. And this is about that people shouldn't judge on how somebody looks on the outside, but how they feel on the inside.