That's because we can't take the rowdy students that disrupt the class into the hallway and whack their ass with a 24" paddle.
My history teacher kept his hanging by the classroom door in full sight of the class, and he wasn't afraid to use it.
Trust me on this. He had holes drilled in it to allow the air to pass for a faster swing.
That sum***** hurt.
I would agree that's part of it but have to wonder if there's more, after all that doesn't explain why so many kids are getting passing grades and graduating when they're not competent in the material.