I believe this explains why most people are able to stop on their own. It also explains why no one treatment works for all addicts or alcoholics. If what you are doing is not working for you, do something else. Doing nothing is the worst choice. I can't believe the question is even being asked.
Most people do have relapses.
It is part of this disease and recovery. I believe that relapse is a learning process that can enhance and improve someones program. I try to remember what my friends in NA tell me. If it doesn't kill you, then you grow from it. That's just the reality of getting free of an addiction.