You can't serve six dishes and one soup because in ancient times, it was called beheading, which is what you ate on death row. Now this custom is still taboo in the hearts of the older generation. China has a tradition of attaching importance to customs since ancient times. "To be a politician, you must first learn the customs" and "observe the customs and know the gains and losses" are the ancestral teachings adhered to by emperors in past dynasties. The supreme ruler should not only personally ask about the customs and people's feelings, but also appoint officials to inspect the customs and people's feelings, and take this as an important reference for formulating national policies, which will be recorded in history by historians.

Customs:

Customs and habits, Chinese idioms, pinyin for fēng sú xí guàn, meaning the traditional customs, etiquette and habits of individuals or groups. It is a behavior pattern or norm that people in the past dynasties followed in a specific social and cultural field. It mainly includes national customs, holiday customs, traditional etiquette and so on. Custom is a behavior pattern or norm that people in the past dynasties followed in a specific social and cultural field. The diversity of customs means that people often refer to the differences in behavior norms caused by different natural conditions as "wind".