Dude. I am an adult and I find adults to be hard to connect to. Yeah, my friends are all adults as well, then then there are those super-serious-uncool-job-oriented-boring people that are the bulk of adults and they STILL FREAK ME OUT!
Doesn't really matter, there's no reason you'll have to connect to other adults until you're older.
Obviously not your age group preference...you should perform a self-diagnostic....
*shakes head in dismay*