I think most of them grow out of it, but seeing some of my juniors in university, they're taking a lot longer than we did. I hate the ones that go all "I'm a lot more mature than most of my friends who like cartoons and want good looking boyfriends. I really don't care about money and looks." Maturity is hardly about pretending to be old.
Edited by an Administrator.
Disclaimer: Any sarcasm in my posts will not be mentioned as that would ruin the purpose. It is assumed that the reader is intelligent enough to tell the difference between what is sarcasm and what is not.