This is easy: up to and including high school, the education is tailored for the many, with the intention that almost everyone has to make it. It means the stan

This is easy: up to and including high school, the education is tailored for the many, with the intention that almost everyone has to make it. It means the standards are lowered to almost the lowest denominator. College has raised standards, the people that get there are above average and move faster and higher. For example you can teach half of the Computer Science courses to half of the high school students directly in high school, but you completely lose the other half. So you move it to college and have everyone happy to have 12 years of mediocre education. It is called equality.