I’d just say that an awful lot more MC children now attend state schools, than a few decades ago. Fees have risen a lot, relative to incomes, so coupled with crazy house prices, independent schools have become much more an option for the very well off.
Our dds went to a very academic independent senior school, but very few of their old school friends are sending their dcs to independents. Of those who are, several are having help from grandparents.
FWIW, if I had to choose again, I don’t think I’d have sent dds to the independent senior school. There was a very good state senior they could have gone to, but the independent was outstanding academically and very over-subscribed, so when they passed the entrance exam plus interview, we thought we were doing our best for them.