well, you only lose your innocence once you get old. i think all of us have that "being a kid" inside of us. it's just that, when one gets older, things get complicated. we learn things, and from there we grow. i think it's a topic in psychology, too bad i didn't listen too much on my psych class before. can't seem to remember.i don't know why you're afraid of being twenty one. probably because you feel like you haven't done much during your childhood that you feel the pressure of being an adult and leaving things behind. takes time to sort things out. i, on the other hand, am being afraid of being called as uncle or grandfather at such a young age.