This is another symptom of how American society is falling apart and turning into a low-trust society with no real sense of community.

Of course, for you personally, it's probably the right decision, despite the problems it causes with childrens' socialization, because of the huge problems in American public schools these days, but for a society, it's terrible. In a high-trust society, people send their kids to public school (which is free) for a high-quality education, and don't worry about things like school shootings.

There's no way I'd ever raise a kid in the US.