Can we not agree, though, that scare tactics around victimless crimes (in the sense that the victim is also the perpetrator) are demonstrably ineffectual? Abstinence-only sex education, for example, correlates positively with teen pregnancy rates [1], whereas opioid overdose education is shown to decrease opioid death rates [2].

Without getting into the moral argument of whether or not people should be able to choose to alter their mental state through drugs (are we cool with coffee as well?), it seems clear to me that the best policy is one of education and harm reduction, not FUD and prohibition.

[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3194801/

[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4688551/