I think a major part of the problem is that as we get older, the pickings get slimmer. Many of the good ones are already taken so are not on OLD.
For real. The prime "dating & mating" ages for both sexes are between 20-30. After that, it slows down considerably as far as chances to meet that special someone, even moreso for women.
& the good ones who aren't taken probably don't WANT to be in a relationship. Reminds me of a co-worker who is quite deluded. She is 35, super short (4'8"), chunky and not very pretty. Anyway, she is pining after this guy who is 36, owns his own construction business, never married, no kids, 6'3", has a nice car and is physically attractive (she showed me his social media accounts). I let her fawn over him to me but thought...."in what world do you think a guy like that is really going to be interested in you?"