The wise ancestors have long provided the answer. One monk fetches water to drink, Two monks carry water to drink, Three monks have no water to drink. One child carries their father, Two children lift their father, Three children push their father away. This is why the ancients always passed on family businesses to the eldest son. It established a system that is inscribed in bloodlines and cannot be evaded. In modern times, most elderly people with social security find that their children are still able to take care of them. The above is a general discussion on human nature. In real life, some elderly people are very affectionate and have a good influence on their children's education, while others have a bit of luck involved, as their environment hasn’t made their children indifferent or too busy. My grandmother is like that. On the other hand, there are some elderly people whose children are very career-oriented, and as a result, they may neglect to care for their parents. I have a distant relative like this; their children are all in the United States, and the elderly couple is particularly proud, but they are unable to take care of their elderly parents back home, who are unwilling to go to the U.S. because they can't adapt to life there.