Not in favor of this at all. Geez, those things can cause serious hallucinations.
A guy I was stationed with a couple of times was originally from Lafayette, CO but attended Longmont HS. He told me of a time he went to a HS party and consumed some "magic mushrooms". He got in his '72 Mustang and started to drive home when he started to hallucinate. He was certain that his face was melting off of his skull. He ended up crashing that beautiful Mustang.
Naw, those things don't need to be made legal.