I read somewhere that I think it was Norway legalized all drugs and then put all the money that formally was used to fight drugs users into treating drug users. Apparently it has had great results so far. Seems like a good way to go.

I've never know someone who has chosen to avoid a certain drug due to the fact that it's illegal or in scarce supply due to the fact that it's illegal status makes it hard to obtain.

I'm no expert on the subject nor well read on it so my opinion isn't worth much on the matter though.