There is something to be said for Smart kids being at school both receive and PROVIDE benefit to/from the other students.
But I guess, who cares about dumb kids, who had less opportunity than the smart ones? They'll get a better draw next life!
A smart kid isn't going to magically become a free tutor for other kids at school. Let teachers focus on educating. Don't shift that responsibility to teenagers who could be advancing significantly in other environments.
Why are their classmates entitled to an education at their expense, and what do the "smart kids" get in return?
It's completely irrelevant to this conversation.
I don't follow the logic.