You are correct about they have to make the choice. Issue is that opiates physically changes the brain and damages the part responsible for making choices. That is why junkies even though they know they are killing themselves don't care. It takes people or circumstances to convince them it is time for a change. Good thing is the longer they stay sober the brain can heal to make it easier for them to make the right choices. I once was on the same path. Luckily I got away from it all before I was in too deep. I made that choice. I am not excusing the choices of people I am laying blame on many and not just the addict. They of course are at fault as well. The Dr's, the legal system, and society are also to blame. There is enough blame to go around. One big issue I see a lot of the time is a family that makes excuses for the addict or enables them.