Having worked in a Retirement community, I can back up the fact that old people bang like crazy, and they spread STDS like crazy because they think they don't need condoms because they can't get pregnant and no old lady or old man is "dirty" enough to carry an STD.
When I left the place I was working for over half of the men and women all had Genital Herpes, and they had a wing of the nursing facility dedicated to isolating and treating STD patients, only 2 of whom originally came there with one. They had almost weekly seminars on how to prevent STDs, and no one would attend unless you literally made them, and even then, most would walk/wheel out before the talks would begin. More than one speaker would talk to us staff after, tell us that our place wasn't that bad, that they've seen worse, and that seniors seemed to be a more at risk group than teens. This was in 2006, so it's been a thing for a while.