I do think it's good to remember that childish things are made for children, and that, however pleasantly lurid the promise of a return to the clarity of childhood may be, an infatuation with the childish reveals only that one has failed to grow past it.
Cartoons for girls don't have to be a puddle of smooshy, cutesy-wootsy, goody-two-shoeness. Girls like stories with real conflict; girls are smart enough to understand complex plots; girls aren't as easily frightened as everyone seems to think.
Show love, tolerance and respect to everyone.
Think you can't write women? Don't. Write people and make them women.
There's more than one way to be a girl