If you have any alcoholism in your family, like among your blood relatives, I’d suggest you just stay totally sober because in my experience, alcoholic behavior runs in families and I personally believe there is a genetic component to that. Some people’s bodies do not process the alcohol very well and they have almost no tolerance before they get drunk and/or crave drink.
I did not have any alcoholism in my family and my parents drank a small amount socially, which means they had maybe a beer or a cocktail once or twice a month. I didn’t drink at all until I was 21 and then only once in a while. My mother gave me some coaching on how many drinks I should be having, that you’re supposed to drink them slowly and eat something first, etc. I’d say by my mid-20s I had a pretty good idea of my limits drinkwise and also that I was able to stop pretty easily and didn’t need it to have a good time. I’ve had some periods of heavy drinking in my life that happened after my father died and after some personal situations with work or school that were stressing me out, but these phases ended pretty quickly and like I said I found myself able to stop easily.
At this point I have maybe 2 drinks a month maximum and I often go for a month or two without having any. I also attend one or two social events a year with my husband where people drink more and at those I might have half a dozen beers over the course of a day, for one day only and with a lot of food involved.
Adgloriam gave you some pretty good advice if you decide you want to try drinking. Your first couple times should definitely be in your own house and preferably with someone you can trust 100 percent (like a parent or one super close trusted friend who’s not a big drinker) supervising. My first time drinking was NOT under those conditions, it was in a bar on my 21st birthday with two of my dearest friends, one of whom was my boyfriend who was a drunk. I was very fortunate that I had a good tolerance for alcohol and nothing embarrassing or bad happened to me. As adgloriam said, people want to get the non-drinker drunk, they think it’s fun.