Did your brother and sister quarrel? I always call! And the other person will smash my makeup, like bipolar disorder and rage.

Forty or fifty years ago, the average family had six or seven brothers and sisters, and fighting was common. There are basically no people who don't fight. Since the implementation of family planning in the 1980s and 1990s, most families have only two children, and there are fewer fights. Of course, there are some families where children often fight. Generally, with the growth of age, the chances of meeting each other have decreased and the relationship has changed greatly.