Is private schooling mainly an English thing, and what does it cost?

[Misoniso]

I’m from NI so the majority of children here attend public schools, I don’t know anyone that attends a private school at all. But I always read about them on mumsnet, is it mostly an English thing? And what sort of cost is it to send a child to a private school? Genuinely curious

It rises with age.i know someone who will be boarding for sixth-form at £60k a year.