Ok. As a 31 year old woman I will list off some reasons why a retired man in his 60s would not have much to offer me.

1. Minimal potential for me to still have them in my life when I myself start aging more.
2. Difficulties with parenting. As the child grows the man would continue aging. At 10 years old the dad would be 70- and not necessarily going to be up for all that parenting requires.
3. More health problems crop up as we age. Those health issues could limit the things we would be capable of doing, and I don't want to have to give up a lot earlier than my own health dictates.
4. Aging often leads to the need for care takers. I do not want to be a caretaker for my partner. Especially as my parents will be needing the same thing at around the same time.
5. Stamina. Unless he is incredibly fit then I will likely have more stamina for maintaining things.
6. Retirement. I know I would get annoyed at work knowing that my partner didn't have to work. Even with a pension I would still end up feeling like the breadwinner.
7. Retirement and free time. I would be jealous! I would have no patience for any complaints or expectations put towards me. Plus, unless they had a really active social life I would get stressed out with having someone at home every second I'm there.
8. Lack of common cultural memories. A lot of the shows, movies, games, technology, that I grew up with aren't going to be the same ones that someone in their 60a will have grown up with. I enjoy nostalgia so it would make me sad to never get to do that.
9. The consistent reminder that I would be with someone the age of my dad. Seeing them naked would make me think of my dad naked and even now that thought makes me feel sick.
10. I would worry about their past - if they had always been attracted to women half their age. It would make me think of pedophilia. I know that isn't nice to say, but it is a thought that would go through my head. It wouldn't matter how nice they were - lots of people who seem amazing have done terrible things.

So Mac, while you do have great qualities and experiences, it does not overcome the age difference as easily as you like to dream. Your age and the future potentials outweigh common interests or you being a kind soul. There are plenty of men who would offer me the same things along with not having the same concerns I would have about an older man.

Now, as I start hitting those same issues for myself then they won't bother me to find in a potential partner. But aging causes complications for all of us (some more then others but you can't predict who really) and very few of us want to deal with those sooner than they have to.