> Because those things cause falsifiable and measurable harm to society. Cannabis use is by all measures benign while its prohibition actually causing real harm.
There are unfortunately people that could be damaged by smoking weed, irreversibly, if their schizophrenia proclivity gets activated. Also the easy escape from problems is not in society's best interest - see the ongoing shaming for gaming, where boys are pushed into the "real world" to get some society-benefiting work done instead of them having more fun.
We usually have 1-2 generations that act as guinea pigs on effects of new inventions or discoveries. The wild time with LSD, heroin etc. is thankfully over. Not sure why would we want to backtrack on cannabis, even if it is objectively less harmful. Alcohol & cigarettes are objectively less harmful than heroin etc. but we would be better off without them.
There are unfortunately people that could be damaged by smoking weed, irreversibly, if their schizophrenia proclivity gets activated. Also the easy escape from problems is not in society's best interest - see the ongoing shaming for gaming, where boys are pushed into the "real world" to get some society-benefiting work done instead of them having more fun.
We usually have 1-2 generations that act as guinea pigs on effects of new inventions or discoveries. The wild time with LSD, heroin etc. is thankfully over. Not sure why would we want to backtrack on cannabis, even if it is objectively less harmful. Alcohol & cigarettes are objectively less harmful than heroin etc. but we would be better off without them.