I think that the point of school is in no way education. The point is to mold individuals in order to fit within 2 standard deviations of the norm, and it does all it can to do so (tests, medication, etc etc).
If you are in the upper percentiles, you are used to bring the lower percentiles up, if you are in the lower you are used to bring balance.
Now we are almost at the point of making not going to school illegal. (you can argue if mandatory is the same as illegal)
-b