Human geography: Why do southerners like litchi more than northerners?

Southerners like litchi better than northerners, because litchi in the south is fresh and cheap. Litchi is only suitable for planting in the south, and the cost of transporting litchi to the north is higher, and the price of litchi in the north is also more expensive than that in the south. Litchi is transported from the south to the north, which is not as delicious as that in the south. Because there are so many lychees in the south, it is indispensable to eat lychees when there are some solar terms in the south, especially in Guangdong and Guangxi. On the solstice of summer, people like to eat some lychees. The rich sugar in litchi has the functions of supplementing energy and increasing nutrition, which is especially good for their health.