Wouldn't that solve the problem of bad behavior among K-12 students nowadays?
If you want better kids in public school, support parents who have or want kids, and help people who don’t want kids not have them.
Enforcing discipline in a class is fine if done well, (my own school used to be somewhat strict) but when students expect to be paid to begood, then they end up growing with that expectation, and would get mad/feel betrayed whenever they dont get immediately rewarded for it in real life.
This is how you get "nice guys".