I also have a hypothesis that if it's freely available and boring then more people are likely to quit. The focus required to get it I think is part of what keep

I also have a hypothesis that if it's freely available and boring then more people are likely to quit. The focus required to get it I think is part of what keeps people addicted - the reward is uncertain. If addicts can go to a boring clinic and get it daily for free maybe they'll at some point look up and wonder why they're doing what they're doing. Especially if the clinic has easily available assistance and things that can help people quit. Even in the worst case where they remain addicts, at least they won't OD and they're not funding organized crime. Probably not as easy with meth though - it's one thing to be addicted and still responsive to incentives, psychosis is a harder problem to handle.