Here in Kansas City, there's a chain of family-style restaurants called Waid's. The times I've gone there for breakfast or lunch, I was struck thatr, excepting me, all the customers were senior citizens. Most were much older than the minimum AARP membership age limit, too -- they appeared in their 70s and 80s.
In my travels, I've noticed that sertain restaurants seem to be popular with the elderly, for some reason, while you don't see the elderly in others. The Village Inn near me is another favorite of the elderly, but in other cities the patronage at a Village Inn is more diverse.
I've heard "price" used to justify the popularity of certain restaurants, but Waid's is no cheaper than other diners or family-style restarants, like Denny's or Perkins, that has a customer base spanning different age groups. Go to Chili's or Applebee's, where the prices are similar to a restaurant favored by the elderly, and you hardly ever see oldsters eating there, unless they're with younger relatives.
So ... what are the old folks' restaurants in your area? What do you think makes them attractive for the elderly? Why do young people avoid such places?