The teaching as a business model is what's broken. It seems to work pretty damned well everywhere else.

And what does your personal experience of that model have to do with it? A lot of people have adjusted schooling hours to better reflect children's biological rhythms. The specific failures of your personal education need not be systemic issues.

Finally, the fundamental issue with education is that it is meant as the great equalizer in society meant to put everyone on a decent pedestal to start things off. It is fundamentally unfair that some children be better educated than others for any reason whatsoever. Scandinavian countries have been aware of this and, while it's never a solved issue, have been doing substantially better than their peers in most areas.