Wait, aren't you and I adul-- Ohhhhh, you're limiting said buzz coppage to exclude alcohol.
Don't you think some of your adult acquaintances might be more inclined to cop their buzz from ganja if it were legalized (e.g. Colorado)? See, it's the ol' alcohol vs. weed debate again.
Everyone pretty much smokes all they want without regard for "legality". It seems to be selectively ignored.