Why do rural parents give their children free-range education? And think that as long as you give your child tuition and living expenses, your child should get ahead?

You are not right. Stocking education does not mean that children will get ahead on their own. That is, rural parents go out to work and can't take care of their children at home, so they can only leave them to the elderly and become left-behind children.

I didn't go out, I didn't have enough vision, I didn't realize the importance of education, I didn't know how to cultivate it, and I had to stock it. This is all determined by objective circumstances.