My YA novel has both men and women. It has queer folk. No transgender ones yet -- hmm. It might have poly at some point in the series, though at least right now, not yet in the first book. It might not. It has a lot of brown people, mostly S. Asian-ish, one Hispanic. Umm...I don't think it has any white people -- huh, I hadn't even realized that. Funny.
It has people of various ages, from a ten-year-old to old folks (70-ish?). It has one severely disabled character -- but he's so disabled that I'm not sure how much he even counts as a character; he's very old, and almost-unconscious most of the time. Very rarely lucid. So far, he hasn't said or done anything, other than lie there.
I have one young person who gets injured, but she'll recover from that, and relatively quickly. I have one older woman who uses a cane to get around. She's slow, but otherwise, not particularly disabled.
I think that's it. I think I'm a little scared to take on disabilities in my characters. I admire the way Bujold handles those issues so much; I wish I could do it with as much ease. But I feel ignorant. I have a few friends with mobility issues, and I know a few people whose kids have...umm...I'm not even sure what the right term is. Cognitive issues? They're not neurotypical.
I went on a few dates with a guy back in Philly who used a wheelchair, but mostly I remember how snarky he was (in a good way), not much in the way of facts or details about how he handled his disability. I sat on his lap to kiss him. And I was a little squicked (but also fascinated) when he showed me the bag he urinated in; it was attached to a tube that went up his pants leg. We didn't get far enough into dating for me to learn a lot more about the physical side of things. I don't even remember his name, which is a shame. I'd like to remember the names of the people I kiss.
I'm sliding off-topic here. The point is, while I really appreciate disabled characters in fiction (love Auggie, the smart, snarky blind CIA agent on the new show Covert Affairs, for example, and Alison's autistic child in Eureka), I think I'm nervous about writing a character who's blind, or deaf, or otherwise disabled. Physically or mentally. Is it just me? Writers reading this -- do you write any disabled characters? Do you think you should?
I think I should get over my issues and just write some.