It's a social problem. Parents, teachers, schools of education, unions, politicians just about every group is at fault.
Our society is so messed up that we expect people to do things, make it impossible and then blame them for failing.
Parents who aren't even a family, just two selfish people who hooked up with no protection and have dumped the results onto the public education system.
Kids who have never been taught how to behave.
Teachers unions who get paid by how many teachers they represent.
Schools of education who believe that grading performance is unfair, that discipline is fascist and that it is better that a society perish than one child have his or her self esteem damaged by being told to try harder.
A judicial system that gets paid by how much legal activity there is in society.
Decent law abiding people must fear criminals and the law while criminals have nothing to fear.