i know you're being sarcastic kinetic, but say walmart would start selling meth.. would you really go out and buy meth from walmart just because it was legal? how about some walmart smack? you gonna start shooting up just because you can get it from wallyworld?
drugs are always going to be around, and the people who want to try and use such drugs don't stop simply because they're legal or not.. if someone wants to do heroin, they can surely find it, and if someone doesn't want to do heroin or meth or coke, having it for sale at walmart isn't going to make them try it..