There is something similar happening in my extended family now. It causes a lot of comment and concern as to whether the help these people are giving is for genuine reasons. I know from my own experience that it could well be! Many years ago I lived very close to an elderly couple. Sadly, the wife slowly developed dementia and the husband used to call on me to help, especially in the evenings. I was still nursing then. She sadly ended up in a home and I used to run him there to visit her. They had no family, so after she died, we’d invite him for Christmas lunch, take him out for his birthday, take him to appointments and just generally help him out. Long story short - to my surprise, he left me his house and kindly divided his money amongst neighbours.
Move on a few years. Another neighbour was widowed. It so happened that she was blind. All her family lived away, so I used to take her shopping. She eventually ended up in a nursing home and I used to pop and see her once a week. I’m convinced that her family thought that I was helping her so that I would be ‘remembered’ in her will, because of what happened with the other neighbour. It was years ago now and it still grates and saddens me that they might think this.