I'm a bit of a tweener at 27 (I'll turn 28 in Oct.). Old enough to fit in with the more non-trads, but young enough to hang with the straight-out-of-school kids. And I actually do fit that mold. Half the time, I'll be sitting with you, complaining about the stupid kids, but the other half of the time, I'll be the one you're complaining about.
I can do, and enjoy doing, the all-night bar thing sometimes, and while I don't watch the OC, I reluctantly admit that I still watch soaps fairly regularly, and I'm a guy (cut me some slack, though... my work schedule has been nights for years, so it just kinda works out!). On the flip side, it's been five years since I've even gone on a date with a woman under 30, so I obviously can mesh well there, too.
I think the best way to go about LS is to look for the best in everybody and focus on that, rather than letting yourself get annoyed.