Stereotypes come from one-sided and persistent subjective definitions of things or other people. Definitions are originally accurate and inaccurate, but subjective definitions can contain strong personal emotions, which is why stereotypes are uncertain. In addition, human beings are continuously developing creatures, both their behavior and personality are in long-term change, and stereotypes tend to exist stubbornly on the personality characteristics at a certain point of time, while ignoring the long-term, holistic nature.

However, stereotypes are only a general and general view, and cannot replace living individuals, so the error of "overgeneralization" is always inevitable.

After the founding of new China, the people's government swept up the order of the old society, and the bandits and all kinds of underworld gradually died out

Get rid of the old habits of thinking in the process of doing things and making friends.As individuals, stereotypes can save cognitive resources and make judgments more quickly, which plays an important role for subsequent behavior.

In foreign films, most Chinese people are of medium height, and most of their occupations are in the middle and lower classes of society. Therefore, in the eyes of many foreigners, Chinese people are not tall enough and have a low degree of cultural civilization.