Many older men experience problems with getting older -more so than women.
Men derive their sense of worth from status like a good job, money, a house, a nice wife and so on.
As they age they notice they cannot keep up so much anymore. Younger men are faster, have new knowledge and education and so on.
The so called midlife crisis. They seem to feel they can resolve these problems by getting a young woman, just like you often see old geezers drive a sport's car.
Kind of to say "See, I'm still worthy! I still matter!"
Apparently men also experience more hormonal changes than has been assumed for a long time.