Stop making facile comments.
Of course there is a cost to addiction, but supply, demand, usage, addiction is pretty high despite criminalization. Gee, maybe drug prohibition is not working, while ruining the lives of non-violent people exercising their liberty. There already is an addiction problem, sure it will likely grow if legalization/decriminalization takes hold, but it's just going to be a degree greater than what already exists.
How come the gov't can't tell you to wear a mask, but they can tell you what plant materials you can put in your body? What about personal responsibility? Freedom? Government overreach? Extensive police powers?
Mask mandates and lockdowns are only temporary, in response to a novel health threat, putting almost no one in jail for non-compliance, and protecting the health of others/society. Drug laws are an on-going half-century failure, extensive police abuse, throwing lots of folks in prison cages, and mainly designed to stop folks from harming themselves.
How is any of that justified?
Try to give an honest answer addressing the question directly.