Hello, white haired old lady here. It's actually quite fetching. anyway, wanted to say how much I understand, how important it is to try to put yourself in a non-dementia situation sometimes, but this is risk of no social interaction at all, as you say.
Because I can be mouthy, I used to use ordinary cafes and it is surprising how quickly a friendship group grows, because as you say others need company too. Also I could keep an eye on my husband while talking with the others.
Then of all things, our local church contacted me with an invitation to join a small Friday afternoon discussion group. I could not find anyone to stay with my husband so I risked going for just one hour. I came back to destruction and awful stuff, but I persisted. The group consisted of more white haired old ladies, but my goodness me! One is a professional musician, another a prison teacher, another a drama coach and yet another a retired matron … You cannot imagine how wonderful this group is. Sadly my husband has died now. I lead the little group now and it is the highlight of my life!! There are some fun people out there, I promise. Whatever colour their hair.
warmest, Kindred.