Yet the entire medical and public-health community is united in asserting that the appropriate response to such behavior is not to forcibly attempt to keep the women from drugs through incarceration or some other form of physical restriction. Some people would argue that the very act of injecting oneself with a dirty needle containing heroin or cocaine is harm to self sufficient to justify the government forcibly restraining such a person in order to save them from themselves. I think such approaches are misguided and impossible to administer in a nondiscriminatory manner. Likewise for opiates, psychedelics, etc. The degree of danger posed by a chemical does not equal the amount of prohibition that is required to reduce harm.
Prohibition is counterproductive.
Education is the key, not prohibition. Allow for adults, prohibit for kids, either 18 or 21, with override for parents or guardians to introduce their own kids to whatever substances they think appropriate. Return drug education to families, take it out of the hands of the government to control with its one message, abstinence, that supposedly fits all. Yes, definitely for people who hurt others. If people misbehave by hurting others as a result of their own drug use, they should lose their license to purchase and use these drugs for some period of time.