“The public is indoctrinated to believe that skills are valuable and reliable only if they are the result of formal schooling.”
“School appropriates the money, men, and good will available for education and in addition discourages other institutions from assuming educational tasks. Work, leisure, politics, city living, and even family life depend on schools for the habits and knowledge they presuppose, instead of becoming themselves the means of education.”
"All over the world the school has an anti-educational effect on society: school is recognized as the institution which specializes in education. The failures of school are taken by most people as a proof that education is a very costly, very complex, always arcane, and frequently almost impossible task."
School does not only act like a monopoly in the economic, market power sense. It also shackles the minds of people working in the education industry.
Since society treats all educational contexts outside of school as illegitimate, any idea that cannot be squeezed into a classroom or lecture hall is rejected as worthless.
One of the most absurd examples of this can be seen in MOOCs. Though there is no physical constraint that makes enrollment necessary, most platforms add a sort of "virtual enrollment" anyway.
He said that at Khan it was incredibly difficult to make progress on his projects because kids had already decided that they didn't want to be there. This distorted the results of his experiments.