Children First
I agree with what you two say in the video. The parents are focused on the children, the immediate family, or they should be, like you said, the children as opposed to anybody related to you, that is extended family, the parents of the parents, and would it end there? For example, if the parents try to support their parents, then why NOT also the parent's parent's siblings and then cousins, and then, where do you draw the line?
Line Draw
Life is all about priorities and focus. It can be very good to help kids. But your parents are no longer kids. Yes, we should be given the choice, the freedom, to help our parents as well if we want and when we want. But we should not be required. Beyond that, they shouldn't expect us to help. Maybe we should or maybe we shouldn't help our parents, but regardless we should only help when we want and only if we can.
Vietnam
As I taught English in Vietnam for five years to 2017, I heard people say similar things about family and there are generally three generations in the same household, the same home, the grandparents, the parents, and the grandchildren. Having three or more generations together can be good. Well, it depends on a bunch of things, but it can be good if done right either in the same house or at least in the same community. We do want to help our parents and that is good but we might not always be able to. It can be tough. Plus, our parents should not feel too helpless, unless if they really are unable to take care of themselves any longer. So, I guess it depends. But the attitude that the grandparents can have can be pretty counterproductive. The grandparents should feel lucky when their grown children help them as opposed to entitled.