Personally I find it limiting to try to relate on an intimate relationship level to a partner with whom I have to try to explain who Captain Kangaroo is.
You have to be selective if you want to have a relationship. If it is just sex, I don't care if we connect emotionally and don't need to teach her who Farmer Green Jeans or Mr. Moose was. However, it it is someone with whom I want to connect, she's usually an old soul, totally down to earth and likes old fashioned fun (outdoors stuff). It's pretty easy once you figure out what you have in common. If you don't have stuff in common, move on. With the two women I am currently seeing it doesn't seem like there is a large age gap with either. Voracious readers can be a good find.
I just turned 60. I own it. I'm in good shape for 60. I've climbed 10 mountains in the past 10 weeks (15,000+ in elevation gain). I can't say that I enjoy it but it keeps my mental and physical health in check.
My wife is 23 years younger than me.... Folk used to think she was my daughter! We've been married 30+ years..... She's given up on sex in her 50's, I'm 80 and still at it, when I get the chance! )