Though honestly, one of my favorite PCs for their rich background that made her a delight to play was one I made for Arx that was in her late 60s (the age on cg maxes out at 65 but obvs you can be older). I wish I'd had more time with her (and sometimes think about bringing her back) just because it was nice to see people relax OOCly around that play. It did not have to be fraught with horndogging. Now that I've ventured into playing younger PCs mixed in, since our community has aged RL, I'm finding they also don't get hit on either in an older-skewed setting, which can be pretty nice to have people be more judicious about rushing that sort of play. Judging from logs the bedhopping/chasing here and there seems to center on whatever the dominant age is (even if it's 30s). Which while annoying if one doesn't want to be approached for romantic RP, is also somewhat cheering as well. It's not like only teens and 20somethings have sex, so it's nice to see some diversity in romantic rp too. 
I always enjoy the ancient looking PBs people used to (and still do on occasion) slap on late 30someting and 40 something PC or NPCs.
Maybe it's just my life experience talking (and just being around a lot of different people at different ages outside of my cohort) but I find that I am more appreciative of a variety of ages as far as storytelling depth. And it tends to be in the hands of the player too. Some people play their middle aged/elder PCs very shallowly or by stereotype. And I've seen many young PCs done well (though admittedly the Doogie Houser types still make my eye twitch, but so do the old dried up hag at 40 PCs!)
Having played mostly on the fringes of late (young PCs or elderly PCs), it can be a really interesting experience to see players not willing to give either a chance. It can feel like a bummer, but I think it's rarely personal so I try to not take the kind of awkward OOC dismissal personally.