(((Alaska)))
Well, I'm one of the old farts
but I sure see plenty of regular posters here in their 20s.
I think the thing is, people like YOU are the smart ones, but relatively rare. Most of us schmucks took a lot longer to admit we had a problem, and left a trail of ruin and remorse in our wakes.
One more thing: You are here about your drinking, yes? Focus on the similarities we all have, rather than getting hung up on age. Never mind that "I'm 20 so I should be out having fun" nonsense. Comparing yourself to some sort of ideal of what someone your age "should" be like will get you nowhere. Any of us, at any age, can do the same thing and most of us will fall short of the ideal.
We're all here because of our toxic relationships with alcohol, so you have that in common with virtually everyone on this forum. Welcome back, and don't be a stranger.