Take The First Step: AA can be an enormous resource

"Q: My adult son recently admitted to me that he is an alcoholic. He has stopped drinking and seems to be doing OK, but I am wondering if he should attend AA meetings. I haven't mentioned this to him, but was wondering if I should. Any advice would be appreciated."

Key words here are "stopped drinking" and "seems to be doing OK".

Since alcoholics regularly quit on their own without any outside help, how ridiculous is it that you suggest going to AA and seeing a therapist? NOTHING was said about the son struggling, having emotional problems or anything.
AA has been proven to be less than worthless. It has no better long-term success rate than those that simply decide to quit. Yet based solely on being told that someone decided to quit drinking, you recommend this person be encouraged to go there.
You're reply should have been: "Great, glad he seems to be doing well. If he has any problems, feel free to write back, and certainly investigate ALL of your options".
The courts continue to unconstitutionally force people to attend AA, so don't feel that you need to add to the efforts.

Recovery is about autonomy. Autonomy means independence or freedom. It is the right to find your own strength of character, desires, wishes, preferences, spirit and the ability to make your own choices and learn to become accountable for your own actions. Autonomy is the individual self that the substance abusing person is seeking. In A.A. you never find autonomy because you are told what to do. You follow the instructions of Bill Wilson’s own personal program of recovery. You follow the unrealistic rules that you sponsor tells you to do in order to stay sober. You are guided towards thinking, living and speaking only in terms of the A.A. theology. You are told to read only A.A. approved literature and hang out with other A.A. members because normal people don’t understand you. If doctors or people in the helping fields are not A.A. oriented, they are considered a danger to your sobriety and should be avoided. In A.A. you become the mind-set of Bill Wilson. And keep in mind that Bill Wilson was a sociopathic con artist and sexual predator – great role model and founder of the “13th Step sponsors” exploiting new comers (and not just men hitting on women). In other words, he was the perfect cult leader. So why would you even consider suggesting A.A. to someone that is doing perfectly fine on their own?