Most likely the narrator and the grandmother are the main characters. The narrator is the one who is making the visit, and the grandmother is the focus of the visit.
Well, it could be about cultural traditions. In many cultures, visiting grandparents is an important part of family life. So perhaps the story gives insights into some specific traditions during such visits, like special foods or family rituals.
Since I don't have the actual text of 'the visit short story', I can only speculate. It may be about a visit that changes the life of the protagonist. Maybe it's a visit to a spooky old mansion where strange things start to happen. Or it could be a simple visit to a neighbor that turns into an unexpected adventure, leading to new friendships or understanding different perspectives.
Since I haven't read 'the two grandmothers full short story', it's hard to say exactly. However, given the title, we can assume that the two grandmothers are the main focus. There might also be other characters like family members (their children, grandchildren) or neighbors who play important roles in the story in relation to the grandmothers.
One aspect to note in 'A Visit of Charity' is the cold and impersonal setting. The nursing home is described in a way that shows the lack of true warmth or care. For example, the old ladies seem more like objects in a desolate place. This reflects on the theme of charity not being as selfless as it should be. The young girl's visit is not really out of pure kindness but rather to fulfill some kind of social obligation or to gain something for herself.
Another possible theme is change. The visit might show how a place or a person has changed over time. For instance, a character visits their hometown after a long time and sees all the new developments and how the people there have grown and changed.
Last week, I went to the zoo. I saw a lazy lion first. It was just lying there, not caring about the people around. Then I visited the monkeys. They were so active, jumping and playing with each other. It was really fun.
I don't know as I haven't read this particular short story. There could be a visitor as one of the main characters, perhaps someone who is the catalyst for the events in the story.