I have trouble making teenagers my protagonists, even though that is the age I am feeling for my characters. Somehow, despite knowing that it can work, and has worked for other stories, I have trouble putting my characters in truly leadership positions, or giving them enough initiative and courage to face the world on their own (it's an adventure fantasy story). I guess because we live in a world today where kids seem to really be sheltered, and don't even move out of their parents' house until they're close to 30 half the time, I have trouble picturing a 15 year old kid who is on a journey to battle evil. I know it can be done (look at Harry Potter, Narnia, what have you), but I have trouble visualizing it if I'm having to write it. Do I just not have the right motivation for my character? Is that required for understanding the rest of the persona? I guess I should say that, I know that a convincing and believable adolescent hero can be made, but I keep getting stuck by my own pre-concieved notions. Advice?