While I don’t like the idea of more people (young or old) consuming mind altering drugs, I also don’t see what gives the state the authority to tell me what I may or may not put into my body.
If I am not sovereign over my own body, then I’m a slave to whomever holds that authority.
Real freedom comes with certain risks and untidiness. People who want a perfect society, want slavery by default.
"Freedom of choice is what we got, freedom from choice is what we want."