In western culture, dragons play a negative role, and many bad things are done by dragons. Westerners have always compared dragons to the embodiment of evil. The brave fight the dragon, and you will know that the dragon is a villain by reading this word.
This is caused by cultural differences, which is normal. Many western countries think it is wrong for us. For example, national chess and China chess are essentially the same, and the rules are basically the same. However, chess is a game invented in the west. Compared with China chess, it has the role of queen, and the queen is very powerful. There will be no queen in chess in China, because in ancient times, women were not allowed to get involved in politics, so there were no women in chess in China, only men.