I tried online dating when I was 40. I tried free sites but frankly they were all hook up merchants, most with no real respect for women. Eventually, I paid for a subscription to a good site and had lots of slightly older men who were interested. I went on lots of first dates, but like an idiot, I wasn't interested in any of them although looking back, there were some genuinely nice men among them.
Fast forward 15 years, and those men would now probably be looking for women younger than me. I do slightly regret not being a little more open to the offers I had but not a lot. I am content as I am and of course, the male in my life is my GS these days and he is far better than all of my previous suitors combined.
I wouldn't go on a dating site for love nor money these days.