I recall from your other thread that you have shown interest in the 12 step recovery process.
Alcoholics really have to start from a long way back when you think about it, but Al-anons have no such handicap.
In the early days of AA, before Al-Anon, the wives saw that if the application of those steps could literally produce a miracle, such as stopping an alcoholic in his tracks, then imagine what it could do for someone who hasn't pickled their minds and bodies in alcohol for 20-30 years.
One recovered person in the house, is better than none.
Be the change you want to see.