Err your experience is the NE.. no? you keep going on about it..
Plymouth and Devon generally, are not wealthy areas, neither is Cornwall, one of the UK's poorest areas and lowest wages.
Turo HS for girls fee's, 17k day 32k boarding.
To put this in perspective, 18k is about the average -take home- wage for a worker in Cornwall, so much like the NE, Cornwall Devon don't have an average wage of 100k either, so who is paying these fees?
Just 1% of pupils have all fees paid, 7% on some sort of support but most schools cap scholarships at 5%, bursaries at 50% max..... & nothing at all for the boarding aspect of the fee, unless military.
This idea you keep trying to push that the majority, if not all parents are on the bones of their arses, is for the birds.