I remember my wealthy great aunt always complaining that the neighbors never helped her out. Carrying things or some yard work....
They ignore me when I say hello.... most likely because her hello came with a would you please?
We noticed that when our mother turned about 90 her personality changed in this regard.
Her entire life had been giving, giving, giving as a pastor’s wife. She literally put herself and her needs behind everyone else’s for 75 years Elderly, she became centered on herself. Even though my brother and SIL lived with her and took care of her, she expected other people to be there to entertain her. Nothing you did for her was enough. She got sort of mean. (She remained super smart, engaged, and wearing her Trump shirt until about a week before she died at 99.)
My husband’s parents also did a 180 when it came to becoming extremely self centered in their 90s.
We don’t hold it against her, since that’s not who she was and we knew that. The changes in a brain and personality can’t help but be affected after 90 years.