Alcohol, while for some part of the population disastrous, does have a strong socializing effect on people. Recent kurzgesagt: https://youtu.be/aOwmt39L2IQ?t=567

cut - 10 minutes about alcohol being the most deadly drug on earth - "People who drink moderately have more friendships, closer friendships and higher levels of trust in others".

Now _moderately_ is the key word here.