The problem is that since the opening of compulsory, universal education in about 1885, the purpose of schooling was not to get your child to do his or her best, it was to deliberately dumb them down to be docile employees of giant corporations and mindless consumers of products.
Mainstream Studies of Deliberate Dumbing Down
http://www.sing-prayer.org/p/1281
Whether geniuses or ordinary children on the farm--where they learned to do EVERYTHING--young people prior to 1885 were allowed to write their own life script.