As a teen lots of good friends started drinking regular. Over time they changed their personality and behaviour, hobbies im bad ways. We lost contact and somehow couldn't connect again. Their lifes were too focused on taking drungs and don't missing out on life, yolo.

Later, I found new friends, the nerd faction and connected easily. 7 Years later and we see each other regularly during the year.

I researched the topic and found out that drinking during teen and young adult hood can change the psychologic structure of your brain and theirfore I hesitated each time someone offered me a drink, i stayed by my alcoholoc free beer and most of the time didn't feal preasured into drinking alcohol. I have enough problems and don't want to be addicted to anything. Jogging and swimming is far better in relaxing my brain after the normal stress during the week.

For me, the party, dancing, talking about a shared topic, singing(karaoke) is the main part of the party atmosphere. If the main goal of the event is to get drunk and do shit, it's not interesting to me because I get bored. Also, I'm a bit introvert but if I'm around my friends, I get a lot more active and don't need the alcohol to socialize with new people. I would never visit a party where I know nobody, there should be at least a hobby or topic that I can relate to.

edit: My tl;dr is, don't underestimate the psychological consequences of a few drinks and inform yourself on these. You should never feel pressured into drinking!