Pot smokers know that the chemical effect of marijuana on the body is very different from alcohol. When a regular marijuana user quits smoking pot, he can test positive to THC, the active ingredient in marijuana, for more than a month after he quits. The reason for this is that THC dissolves readily in fat, and so is stored for many weeks in the fatty tissues of the body. Consequently, marijuana is very slow acting. It is highly potent but appears to be mild because it works so slowly.
Kids play around with pot because it superficially seems to be harmless.
However THC steadily builds up in the body fat, and slowly drags them into a state of continual sedation. Their minds become so confused that many of them eventually graduate into cocaine and heroin addiction. The drug cartels understand this, and are obviously spending large sums of money to keep the marijuana issue confused. As long as many kids believe that marijuana is relatively harmless, their drug profits are guaranteed. During the 1970 s NIDA sponsored excellent research on marijuana, which proved it to be very harmful.