Public school is a joke in America. I call it "conformist fascism". I was public schooled and hated it because of the focus of attention based on intelligence. If you're on the right side of the bell curve, you're essentially left alone and not nourished academically - while the teachers give futile effort to the dullards and those on the wrong side of average. This is all because every parent tells his or her child that he or she can grow up to be president.
It's not politically correct to tell a kid that you're just f'n stupid, and that you don't need more than rudimentary skills to fulfill your career of pumping gas or asking people if they want to super-size their #3. There's some belief that you have to reach every kid, and that you cannot tell early on who's destined to be a doctor or lawyer, and who's destined to be a factory grunt.
If and when I have children, I would never expose them to that environment. I would put them in an establishment that catered to their abilities and strengths.