A substance legal for adults will be used by most kids. Every kid knows how to get alcohol or cigarettes, just ask some random homeless dude to get it for you in the nearest store for a dollar and there, done.
Grade A fear mongering, go for the kids. High schools are full of all kinds of illicit drugs. Regulating them and creating outreach would actually get a better handle of that. The additive argument is utterly absurd. Again legalization means regulation, which would prevent such a thing.
