YES, and I have experience with addiction. At some point you overcome your addiction, and if you go back, you make a conscience decision to do it, not because you think you need it.
i agree that there is a conscience decision to go back, but that doesnt mean that the addiction went away.
If you smoked marijuana for 10 years then quit. Years later youre at a party and smell someone smoking it, youre going to be tempted. The addiction is still there, just to be clean youre in control of it.
You had a point, I just think the way you said it was wrong.
Rather than the addiction going away (which its relatively unanimous from experts that it never does), after 23 years clean from the stuff he should know how to avoid people and situations where the stuff is used. Avoiding being around and tempted by alcohol, cigarettes, etc is pretty hard to do. Avoiding being around people and places where heroin are used, not nearly as hard.