Traditional Culture Encyclopedia - Weather forecast - Why do you say hello when you eat at home and say hello when you are in foreign weather?

Why do you say hello when you eat at home and say hello when you are in foreign weather?

This is a very interesting question. This domestic greeting about eating may be related to our national tradition. In the past, when we didn't have enough food and warm clothes at home, everyone asked if we had eaten. However, it has always been a polite tradition abroad, which means asking about the weather seems to be an important courtesy.