I don't know what he said either, but I have a feeling. Doubt it was alcohol. What I think he was probably talking about has been suggested to me numerous times, and the thing is it has the tendency to make people paranoid after a while. Anxiety and this particular plant do NOT always mix well, in my opinion. Then there's the whole legality thing.
Alcohol. I don't know about that one. If a person becomes dependent on that stuff things can go downhill really quickly. My ex-girlfriend wasn't an alcoholic but she did drink heavily and it wrecked her life pretty good. She didn't notice till she sobered up. If it's confined to social situations, yeah, I can see where it might be helpful as long as you don't start looking to have social situations every night of the week. A person can start out with a lot of discipline and suddenly find themselves in trouble. For that reason I cannot recommend it.
Now if a person's agoraphobic and is making progress, there's no harm in suggesting to them that they should go out that weekend, have a few drinks, and have a little fun.
I wish I could drink alcohol. Maybe I can someday. Last December I was doing pretty well with anxiety and was able to have a few drinks on a couple of occasions. God, it felt good to be like everyone else. Otherwise, when anxiety is bothering me, drinking just destroys my stomach. It's awful.