Are her parents healthy? This is always a good question because if you are 60 and dating, her parents are going to be 80ish. Which means that the health of her parents is going to be failing soon if it hasn’t already.
And since she is a daughter, she will feel the need to support her parents. This is only natural. But, understand, this is a package deal so don’t expect contrary behavior on her part. She will need to do what she needs to do.
Enough said.