"Older" gay here. It is possible to meet older guys, you just have to look in the right places. I met one of my first boyfriends off Bear411 (sidenote: don't use the site. It's awful and the owner is a tool), BearWWW, and a couple of now defunct sites.
Also, see if there are any gay-centered activities in your city. Soccer, rugby, knitting, book clubs, etc. These can, not always, attract an older crowd.