Honestly, this may seem like an unpopular opinion, but I would say that dating for 50 years old and above should not really be that much different from dating between young adults. And I say this as somebody who has worked in an introduction agency for a while now.
The thing you should look for in a partner if you're 50 years old and over is basically the same as what you look for at any point in life, which is – you want a partner who is open-minded, straightforward, trustworthy, can communicate, and is patient.
Of course, in older people, the need for all of these is more significant, with less chance of being overlooked. While young adults have time to make things work, older people may not. I would advise checking out this page for more information: https://carpediemintros.com/
