From my window I have a view of England's oldest primary school building. 1830. The world survived very well for thousands of years before this form of imprisonment was introduced. I hated school. The rest of my life has been much better.
I cannot think of a worse way of learning. It is contrary to Nature. River Apes (i.e. humans) possess a natural inquisitiveness. The force feeding of facts is a violation of psychological good health. Teachers are almost universally nasty people who think they know best. In the tribal riverside environment to which we are fashioned by evolution, River Apes learn naturally, sometimes by parental guidance, and most commonly by example from elder siblings or cousins.
High rates of literacy make life increasingly intolerable for those who lack the facility to read, and who are regarded as stupid. I happen to lack the facility to read music or to draw a likeness of a face, but I know "stupid" illiterate people who can do both. We should make the world a more agreeable place for the illiterate, who are made to feel inferior and often drawn into crime.