This is a recipe for disaster.
You strike children, some of them are going to strike back.
Of those that do, some of them are not going to stop. It'll start with broken jaws, busted wrists, maybe a few fractured ribs before the fight can be broken up. Then some "educator" is going to have their skull stove in with a blunt object snapped up in the heat of the moment, sending them to the grave and the student to life in jail.
Nothing like destroying lives in the misguided pursuit of "earning" respect and fostering "discipline".