Talking about the old man and his parents buying food.

I think your mother did the right thing, and everything has to be done according to her conscience. Your grandmother gave birth to your mother and your mother gave her life. I tried to take care of her when she was young. You know, people do things all the time and don't expect anything in return. Good people are rewarded. Never mind what your uncle did. I believe your grandmother will carry a big bowl of water, and her palms are full of meat. You should be proud of having such a kind mother.