It works, but not in a way you'd like it to.

A related saying of some guy who knew this stuff: "You can make a throne of bayonets, but you can't sit on it for long". You can force people with punishment, but they will try to revolt and get revenge once they have a chance; even a small chance, and a small revenge.

By that time they will graduate and it won't matter anymore. It's school, not a society consisting of adults.

as someone who it has never worked for; you're so wrong.

I was beaten as a kid. It just made me angry. So f*cking angry. It didn't stop me from acting up. I learned to take the beating with pride. I got smarter about when to act up. Everyone involved, literally everyone, had a worse result from this.

I would have had such a better life (and everyone around me) if the people who were supposed to be taking responsibility for me had actually stopped beating me and tried understanding me (like they were supposed to).