Why don't all the villages and towns in Ganzhou speak Hakka?

I am from Ganzhou, because not everyone in Ganzhou is a Hakka. I am from Ganzhou, a Hakka. If you want to know the history of Hakka people in Ganzhou, you can look at the information. When Hakkas emigrate from the Central Plains to the south, if there are few people in a group, their languages and customs will be assimilated by the local people. If a group has a large number of people, it will assimilate the locals. Our Wang Xing family is a noble family, and we still have many Hakka customs, such as hanging our home on the ancestral temple. We are a branch of Wang Xing's family, called Sanhuaitang. At home, a plaque will be hung in the lobby to show that the family is diligent in farming and studying.