The answer, it seems, is from us. From the teacher and from the classroom. The culture of the classroom is dominated by the need to meet the demands of content-laden syllabuses, prepare for formalised tests and at the same time moderate the behaviour of a large number of young people. There is no likelihood that this would change even if we wanted it to. The market for educational software is not the school.
Subversion is interesting.
Education will happen in the home, and teachers will be on the open market as contractors. If they're lucky. Or on the dole, if they aren't. Librarian, in other words. The keeper of the AV room.