It's kinda all about image.
I want to make my own movie.
Nothing is really 'safe'.
I quit high school the first day of 10th grade because I felt like I was wasting time.
Skateboarding teaches you how to take a fall properly. If you try to kickflip down some stairs, it might take you thirty tries - and you just learn how to take a tumble out of it without getting hurt.
Seeing people get messed up never gets un-funny! And there's plenty of ways to do that.