I found this site the other day. It's a sort of AirBnB for people over 50. They also put folks together who love to travel and want amiable companions. It seems like a wonderful idea, as long as you don't book into the Bates Motel.
That sounds like an interesting idea. I took my grand daughter to the UK a couple of years ago. She was a great traveling companion and we had a blast. She was 15 then and now is older, in college, has a boyfriend etc. No time for another trip with grand pa. This site you found could help me find a new travel companion.