Bans only succeed in sending things underground, and people make a lot more money selling them than they would legally.  You only have to look at the UK to see how "ban everything" populist knee-jerk laws don't work.

Especially when it comes to teens, who seem to be hardwired to do anything they're told they shouldn't.

("Nerdstress"???  Is that like "Geekette" with pocket protectors? :) )