Drugs are not a problem in the wide sense of this issue but, considering drug abuse and illegal use of hard drugs, it is huge problem in the social dimension. Uncontrollable use of drugs leads to addiction which affects one's physical as well as mental health. People start craving, killing, robbing, and dying on the gridiron. We have not enough rehabs to treat these people, and legalization of the illegal drugs makes everything even worse. Moreover, the cost of addiction treatment is high, free rehabs are rare (advertising link removed per rule 2.7). It's obvious that no legalization of drugs is not the best idea.