I'm thrilled you brought this up. Most of the pro-cannabis people I talk to are still of the opinion that people should be locked up for using anything harder, which is such a shovel-ful of bullshit as I can hardly stomach. It is not for any kind of moralizing bureaucracy to tell people what they can ingest and what they can't, and doing so does not one fragment of an iota of good.
Oh, and honest, factually-based drug education is an important thing--both my psychology and biology textbooks preached the evils of pot (and everything else), and talk to basically any young person and they know nothing at all about drugs, even the ones they use.