There is a lot wrong with public schools. At least the list would be shorter. The government school system in America today is sadly lacking, and not just in the realm of academic achievement.
Children are, in effect, risking their lives by attending school.
Fatal attacks from deranged students are spreading like an epidemic. When I was a teenager in the 70's, high schools had some problems with drugs and racism, but there was still a remnant of respect for teachers and school property. Not so now. Police are a common sight on school grounds, anti-drug campaigns are routine even in elementary schools, kids bring weapons to class and actually kill innocent people. Public schools with the weapons, police, drugs, and violence are looking more like jails all the time.