I cannot speak for the US or Canada. We are certainly more culturally inclined to regard Universal Healthcare as an essencial pillar of society, and addiction falls within that umbrella.
What I can say from personal observation is that I see waay less junkies compared to 20 years ago along with less drug related crime.
Prisons were full of junkies so, even before the decriminalization law passed, they weren’t prossecuting small time possession as much, since it was getting harder for the prison system to deal with it.
There were (are) many faccilities with doctors and shrinks that provided drug related medical care so if you wanted to detox they would provide you with medication on the very same day. For methadone it could take a bit more. To be allowed into a detox facility they put you on a waiting list and it could take between 2 or 3 weeks, but again, medication on the same day and detoxing at home was always on the table, along with theraphy sessions.
Recovery centers/communities were also widely availability. You would be admitted only after fully detoxed. Ghe one I was in had a 1 year phase with limited contact to the outside world, with daily group and individual teraphy. Cleaning, cooking, landscaping, maintenance, was our responsability. After that phase they moved you into an apartment and you started to actively search for a job.
I have to say, despite the expected relapses along the way, most of the dudes from back in the day (most of them my peers, some of them my dad’s age), are doing fine. Of course I’m not including the ones that are fucking dead, but most of them died close to 20 years ago, whether from aids, OD.
Oddly enough there’s a bunch of guys I know who were never heavy drug users that decided to take up free basing in their middle age. Or crack, if you will. Same difference.
Again, this is just personal observation, but as far as my own “Lewinston” is concerned, impact was positive. Less junkies, less crime, and I haven’t seen a syringe in ages.
Here’s a link that goes beyond my own empirical observation.