I know what you mean about socialization and AA. I was very shy as a kid, but thought I had overcome that ~ when I was drinking, I always wanted to be the center of attention and the life of the party. I was surprised to find out that in sobriety I am still shy by nature. I guess some of that has to do with self-confidence or lack thereof. The great thing I find in AA is that when I share that with others, most folks identify. The group of women I know all appear to be confident women, but underneath it all they share the same fears and concerns that I do. Knowing that kinda levels the playing field and it's easier for me to be social.
Socialization within AA is great; the Fellowship is a wonderful support system. I do have to remember, though, when my phone is not ringing off the hook, that I go to AA first for my sobriety and second for friendships. Even if I don't find the friendships, I still want my sobriety.