Why didn't Shandong people in history choose the rich and humid south of the Yangtze River to "go east"?

I think there are many reasons for this, including distance, culture, environment and other factors. First of all, Shandong belongs to a relatively northern city, so if you want to choose, you will definitely choose a city closer to yourself first. Because everyone was already poor at that time, if you choose a particularly long distance, many people will be unbearable and even more unsafe.

Moreover, Shandong people and Northeast people are tall, and then many times their temper and food are similar. If you had gone to the south, it might have taken a long time to get used to it. And it may be acclimatized, because the north is dry and cold. The south is a place with high humidity. If northerners come to the south, they may not stand the cold and humid weather and get sick easily.

Another point is that when I was in the south, the whole environment was not very good, and many places were at war. At first, southerners wanted to run for their lives. If northerners go again at this time, the environment will get worse at that time. And if there are many people, the land in the south is only a little bit at that time, so it is easier for everyone to have no food. It is better to go directly to the northeast, at least the northeast is relatively large.

As we all know, there are many things to consider if large-scale population migration is needed. At that time, the reason why Shandong people chose the northeast instead of Jiangnan was the decision made after considering these factors. From now on, it was a more suitable choice to go to kanto region at that time.