I went to both public and private (catholic) school during high school and there was a huge difference. That was over 30 years ago so I am sure it has only gotten worse. Across from one of my rental houses a boy shot a girl over a Facebook argument and it only wounded her slightly. He was still allowed to go back to school. He spent about a week in jail. He also robbed someone at gunpoint after he was 18. Spent a couple weeks that time only because his mom wouldn't bail him out. Never did any time. I see him every time I cut the grass sitting on his mommas porch smoking weed all day.