Is waiting until you are 21 to drink more worth it?! (Answers for people older than 21 please)?

I'm not a big drinker but sometimes I'd like to go out with a couple friends for beers and whatnot but then again I dont because im not 21. I've just decided to wait becuz whats the point of getting an MIP u kno? But it seems like im the only one who feels that way...so do you think it is more worth it in the long run for me to just wait?