If the government were to sell it themselves and tax the hell out of it along with other drugs. I see no problem with it, I mean they let out tons of other drugs that are even more harmful just look in the averages person's medicine cabinet and read the side affects.
On the other hand, I do not like the thought on how (some)people become dependant on it. In my experience the people that smoke it do it because they are depressed(or so they claim) they can't handle life so they rely on a mind altering substance to handle the world. I do not like the concept of a group of people reliant on a chemical that they really don't need to survive. If people are dependant on something it makes them easier to control.
PSN ID: KingFate_