Are public school lunches free?

When you buy a school lunch, it helps pay for more food, to make the school lunches. Also, it gives the principle money to pay the teachers with, because they have worked so hard to teach your child, they need some kind of reward for doing all of that hard work! And then last, it gives the principle money to go out and buy things that the teachers might need to teach with. So, when they get these teaching devices, they can teach your child or children more. And your child can grow up to have a better life and a better education.