I agree with the point on consistency, but must substances be viewed through the lens of "abuse" and "mental health"? It's not clear if you are implying that u

I agree with the point on consistency, but must substances be viewed through the lens of "abuse" and "mental health"? It's not clear if you are implying that use of alcohol is generally a form of drug abuse related to mental health. In fact I'm not sure we can adequately define what is "abuse" in this case. Take for instance Lemmy from Motorhead, who used alcohol and drugs heavily throughout his life and probably died an early death as a result; can that really be considered abuse when he, pardon my French, didn't give a shit? For some people, things like alcohol are a serious issue and overuse can stem from both physical and psychological addiction. Then you've got people who use it sparingly. And yet there are people who drink heavily, know exactly what they're doing, and can't easily be classified as addicts without projecting one's own life choices unto them.