Like Anniebach, and some other posters, I could not walk away from my alcoholic DS either. He didn't drink because his friends did, he didn't have any friends. I don't suppose he knows when he moved from being a social drinker to being dependent. I think he gets comfort from AA meetings now because he has others who understand how he feels, and he enjoys their company.
I've seen compassion for dependent drinkers on this thread, I'm thankful for that. However, I found that there was little compassion from the medical profession. When my DS asked for help, he needed it at the time of asking. We tried to help him but he led us such a dance and then he was filled with shame. We used our retirement savings for private, residential rehab. The counsellor went far and above what I would have expected, DS still attends weekly group meetings with him and, on the last occasion of a lapse, DS was able to go and see him to talk over what went wrong (last lapse was in 2016). There has been no additional cost.
DS has plans, he has a job and his car licence but he is so ashamed. I'm worried that the loneliness that probably led him to drink has now been replaced by shame that will continue to isolate him unless there is a change in the public perception of alcoholics. People are beginning to speak out openly about their mental health issues but only a few celebrities admit to being recovering alcoholics. The prevailing attitude is that alcoholics should take responsibility for themselves, some are genetically predisposed to being alcoholics, they can be violent and they can't be trusted. I'd like to see alcoholism classed as a mental health issue, but that might mean society as a whole would have to address it's uneasy relationship with alcohol too.
I'd like to add that I am immensely proud of DS. I just hope that, for the rest of his life he will be able to look people in the eye and say, ‘I don't touch alcohol, I enjoy life without it'.
I hope.