12 Step recovery and adjacent programs fill this niche quite well, and new communities are popping up all the time to deal with more modern addictions, like internet/technology addiction.
I'm sober and have been in that world for several years now, and the most important (and hardest) part of getting sober was accepting that I had a problem and needed help. Macro policy decisions can help with access to an extent, but addicts fundamentally cannot make better decisions for themselves until they first realize they have a problem. And as prohibition taught us, once the demand is there, it can't just be regulated away.
I'm sober and have been in that world for several years now, and the most important (and hardest) part of getting sober was accepting that I had a problem and needed help. Macro policy decisions can help with access to an extent, but addicts fundamentally cannot make better decisions for themselves until they first realize they have a problem. And as prohibition taught us, once the demand is there, it can't just be regulated away.