My roommate was a pot dealer this past year. After seeing the purely psychological effects of having marijuana around, I'd personally never want to see it legalized. The lackadaisical nature it brought about, the lying, cheating, and stealing necessary to fund it (he stole almost $5,000 from his mom in a single month so he could smoke 2-3 times a day 7 days a week with his fellow dealers/smokers), and, put bluntly, the fact that he smoked because he had crippling depression he had left untreated following his parents divorce, was enough to let me know that smoking pot, in some cases (I won't negate the medical benefits it can have in patients who need it purely for medicinal purposes), smoking pot is just a way to escape and cover up deep-seated psychological issues, such as depression, anxiety, or adhd (all of which were exhibited by my roommate and his fellow smokers, both physically and verbally expressed directly to me).