I'm not at all saying that addiction is due to rebellion, or really anything about addiction, just that making drugs illegal makes drug use an appealing way to rebel for a group of people that is probably one of the most vulnerable to damage caused by drug use and abuse.

Addiction is a whole different story, my point was related more to kids partaking in "sex drugs and rock and roll" to piss off their parents, fit in, and be "cool/edgy".