IMO she doesn't have to pay for it just because she has the money. Money can come in between family members and lending money can make relationships worse if not paid back. I make double what my sister makes, but I don't feel obligated to help her. I help her when I want to and if I feel the need to. She is a grown woman and can make her own decisions and solve her own problems. She does the best she can with what she has and is content that way. I almost got a personal loan for my mom because she was struggling financially, but at the end of the day, we decided to not do so. We figured that would cause a rift between us and it wasn't worth it. She decided to figure out how to solve the problem herself. Whether or not she has yet, that is not my business. I love my mom more than anything, but sometimes you have to let people take care of themselves. Otherwise they will keep asking because they know you have it. And that is a slippery slope.