Personally, I've never been a drug type of guy... Driving always was my high. You have to understand, though, that these kids that think they have ot get away from things really DO. The teen years are the hardest in your life where you develop the most and have the most interaction with people, of course they are going to have more stresses then you think they will. Try being a teen now and you'll understand.
(before you ask, no I'm 22)