For example, in a large-scale competition, two other countries in the venue face each other. If the audience likes a certain country, they can also cheer with the national flag of that country. However, if the national flag of other countries is hoisted at ordinary times, it may cause public outrage. After all, China people flying the flags of other countries will arouse resentment.
China's Constitution does not restrict personal freedom and privacy. Defend individual rights.