It does seem that autistic people who drink alcohol do have a normal social life. As an Aspie who is teetotal, I don't have a very big social life, as I'm openly shy - although my ADHD can make me seem more outgoing but I do like people and I am naturally socially-orientated but social anxiety prevails. Yes, lots of contradictions going on there, which is why I don't consider myself an introvert nor an extrovert. I prefer to be myself in social situations rather than be under the influence of alcohol to enhance my social skills, because my social skills naturally aren't that bad considering. I'm just a little awkward and don't really do a lot other than smile, make eye contact, greet people, pick up easily on all non-verbal cues, only speak when I'm spoken to, listen more than talk, and only engage in conversation if I feel comfortable around people but I don't ask many questions. Drinking alcohol could loosen my tongue and I fear I might come out with stupid things or become emotional or embarrassing. I much rather be myself, even though sadly it means I have a very small social life and can feel lonely at times. But I do live in a culture where being drunk is valued, so I think my teetotalism and social anxiety is far more socially disabling than my ASD.