> At that point it becomes a public interest.
This doesn't seem to be so self-evident. Why do I care about the education of those around me?
This doesn't seem to be so self-evident. Why do I care about the education of those around me?
...generates more economic activity
...understands basic civics and government
The public school system isn't doing that for our fellow citizens already. I fail to see why it would be worse if the failure happens at home rather than in a government building.
And that's a fair criticism of some public schools. And some home-schoolers. And probably some private schools.
That's also why you care about the state of the public school system, even if you have no kids (or they don't attend public school).