Yes they do get tax relief because of charity status but what I meant was the state does not fund the schools.
Seems to be quite different in Sweden where the state does fund Independent schools but they run themselves free of state interference. An unusual system.
I wonder how the so-called Independent schools in Sweden would fare if state funds were withdrawn. It would be 'sink or swim' but in the UK many flourished as fee paying schools after grammar schools were abolished in a lot of
areas.
The thing about faith schools is, do they teach children what they need to get on the world.
When reading about Sweden I was surprised that there were Plymouth Brethren schools (or Exclusive Brethren); I've not come across one before so I googled and we have quite a few in the UK & in Ireland. They have an extremely narrow curriculum. Here's an article by a teacher who used to be on the staff at one of those schools over here:
https://faithschoolersanonymous.uk/2016/06/exclusive-brethren/The extremely Orthodox Jewish groups such as Haradi have private schools and their curriculum is even more narrow, they learn enough only to work within their own community (in contrast modern Jewish schools are very good indeed).
http://www.bbc.co.uk/news/education-42580792http://www.independent.co.uk/news/uk/home-news/ultra-orthodox-jewish-group-creationism-teacher-school-funding-boycott-hackney-london-a8216686.htmlIslamic schools have a high standard of education particularly in science & technology but do not teach all the subjects that are on offer in other schools, eg Drama, Music, Art (except for Design).
As Sweden's faith schools are state funded, the state has the right to look into all of that & correct it.