Ive smoked for many, many years, and have met, and obviously known many smokers, in a range of professions, over the years in various countries. As yet, after 35 years or so, I can count one individual, who went off the rails, supposedly because of Marijuana, and even that was suspect...
The laws concerning cannabis have never bothered me. Ive never been arrested for herb in over 30 years. Not entirely sure that legal legislation against nature is that good a plan in the first place. Its not for everybody, and some will fall by the wayside. The same as those who consume 'legal'...