Do southerners have to order soup and vegetables for dinner? Why?
Not all southerners want a soup and vegetables. Look at personal tastes and eating habits. In the south, there are many different food cultures, and people can choose different foods according to their own preferences. However, some people are used to adding soup and vegetables to their meals, because this can supplement nutrition and make food more delicious. Generally speaking, eating is a personal matter, and there are no necessary rules.