The weather in northern and southern China is very different. The weather in the north has four distinct seasons. It is hot in summer and cold in winter, and it is easy to have dust when the weather is dry.

This kind of weather will cause northerners to be very dirty, and dirt will form on their bodies every few days, so they are used to having people help them rub them in the shower. The climate in the south is warm all the year round, so it is not easy to get dusty and there is no need to take a bath.

Conceptual analysis

Different areas lead to different habits, just like taking a bath. In the past, northerners didn't take a bath every day, and water was precious to northerners, so there was no such condition. They only wash once in a while, so there is more dust on them. Southerners are not short of water and have time to take a bath every day. If they take a bath every day, they won't get dusty easily.

In our eyes, northerners are more heroic, while southerners are more subtle. Taking a bath, that is, being naked in front of others, is still very embarrassing. For northerners, they may get used to it, but southerners will be embarrassed. Everyone will be apart when they take a shower.