Eliminating the criminal element associated with marijuana is so huge. Gateway drug got mentioned in the other thread, but it isn't the drug that is the gateway, it is the people connected to it. If you are buying weed at a dispensary, you don't have a dealer asking you if you want to try some ecstasy or coke. Obviously some people are always going to experiment and try things, but I think this will reduce it significantly.
Also, RE: thread title... I didn't understand it at first so I ignored the thread initially
Country roads take me home...