Why do people in some poor places like to inquire about other people's family background and economic conditions?

This has to be analyzed by psychological methods. People in poor places ask this question because they have a poor heart. When they hear you say that you are not doing well or even better than them, they will have a kind of comfort in their hearts and think that others are not as good as themselves, thus achieving psychological satisfaction. But if he hears that you are better than him, he will feel inferior, always feel that you look down on him and even start to be hostile to you. These are all human psychology at work. It's like a celebrity saying that people can tolerate others being worse than themselves, but they won't tolerate others being better than themselves. This is also a bad habit of mankind.