The value of school education?
I agree that schools are little more than child minding, especially in the first ten years. Most teachers spend their time striving for crowd control. Schools do put pressure on most children (through their parents) to learn some skills and acquire some knowledge. However, this process is very slow and, for most students, inefficient and at worst ineffective.
Politically, schooling works by creating a culture that accepts the need for academic learning for all. Most children do learn something! By high-school most read as well as my children on entering school, aged four.
Home-schooling makes eminent sense, though few parents have the time and fewer the ability to facilitate learning. The use of the governess for the rich in bygone centuries also produced better results with teacher to student ratios approaching 1:1.
I think our education systems would work better if those in authority - politicians, principals, teachers, academics - were honest enough to freely admit to these shortcomings. Hardly likely.