And yet this same reasoning doesn't apply when it comes to grammar schools, which like private schools have a pupil body disproportionately drawn from middle class and wealthy families.
Grammar schools have class sizes as large as comprehensives. And yet that isn't seen as a problem by parents.
"Many parents choose private because their DC can't cope in mainstream large state schools with classes of 30+. Lots of SEN kids without an EHCP as an example.
I can't see why you can't understand why that would be an issue."
You've immediately jumped from 'private schools could increase class sizes to cut costs' to 'private schools will be forced to double class sizes to absorb the cost of a 20% VAT imposition on fees' - why?
You've also taken the challenges of large class sizes in the state sector - where teachers may be dealing with large numbers of children with significant behavioural problems, undiagnosed SEN and social deprivation, and suggested that the same conditions will apply in private if class sizes increase.
Of course you know that's rubbish don't you?
Private schools don't offer places to academically struggling children who come from unsupportive and majorly dysfunctional backgrounds, because those are the parents who would never ever jump through the hoops required to attend open days, prepare their child for entrance exams, apply for bursaries ets. Meaning the very very tiny number of children in private schools who come from low income families are absolute outliers. In my experience the very few children I know who come from genuinely poor families who got a bursary to a private school have extraordinary parents - they were people who are absolutely dedicated to their child's education.