An education system modelled on what didn’t work 100 years ago

This figure is from Tony Bates based on this Sutton Trust publication. He adds:

“a model of education that is clearly influenced by the British public boarding school system from which most of the Conservative government ministers have graduated. The current English education system is in a time warp that seems to belong more to the 1920s than the 2020s”

Yes, as in a century ago.