When discussing the problem of left-behind children, some scholars blame it on individual and family factors, emphasizing parent-child separation, but whether it is historically going westward, moving domestically through the population such as Kanto, or overseas populations formed in the South Ocean, There were a large number of left-behind children. During the Ming and Qing Dynasties, Huizhou businessmen went out to do business in large numbers, and there were also a large number of left-behind children in their hometowns. And the left-behind children produced by urbanization have already begun to take shape in northern Zhejiang and northern Jiangsu in modern times. Why did the issue of left-behind children become a public issue after the 1990s? This is not only because of its increasing size, but also because of the transformation of rural society, which has fundamentally changed the rural education environment. On the road to modernization, urbanization On the way, rural society is completely in a disadvantaged and passive position, and rural culture has declined. The most accurate summary of the main point of this text is:. ['The destruction of rural culture in rural China is devastating.', 'The decline of rural society is the main cause of the problem of left-behind children.', 'Exploring the problem of left-behind children cannot be justified at the individual and family level.', 'Left-behind children in history have not caused problems.']