If you don’t come to school we’ll put your parents in jail is an eminently rational principle.
To defend school for a moment it’s one of the least awful places many children experience on a regular basis. The adults don’t really care but they don’t hate the children. They’re not going to hit them. It’s a reasonable temperature. They often get food. I was horrified hearing one of my colleagues describe teaching in the UK. It mostly sounded like being an ersatz social worker. But it’s not like education is first or second in school’s priorities. Child minding is higher, why not social work?
That's not a principle, that's a mugging.
We're having issues that a lot of children don't receive education because they can't pay for it. Education is a privilege that many never experience in the world.
Would you rather they work in a coal-mine and get paid for their time?