Ralph
My dog walker is a retired man from New York. I'm not sure what his prior profession was, but he is now a philosopher and dog walker. He is in his late 60's and is probably in better shape than most 25 year old men. You'd be too, if you spent your day exercising.
I know he used to be married, but now he lives alone. I think dog walking gives people a lot of time to think. It must be difficult thinking so much all the time and then not having many people to discuss your thoughts with. I guess you could talk to the dogs, but the problem is that they don't give feedback and all too often they become rather bored if the conversation does not involved a recognizable food word or cats. So every time I call my dog walker on the phone, the conversation swiftly turns from scheduling and dogs to philosophy. The calls usually last from 30 minutes to an hour. For some reason, my husband refuses to call him.
I take my walks alone, and spend a lot of time alone, and you're right. I have many thoughts that I don't have anyone to share with. Of course, I do have an outlet with my writing, but I would really like to have a partner to walk and talk with. Dog walking is good exercise!