Do you actually know much about the way places like WhiteLodge, or Purcell, Chets, Wells etc function in terms of schooling? Doesn't sound much like it here. They all massively overlap with mainstream education.
While I acknowledge that they do offer academic programs, their pathways often diverge from those of comprehensive and grammar schools.
As I mentioned earlier, these are official private schools, mostly boarding, with some students funded by the state and charitable organizations. I would classify them more as private schools with bursary provisions. Ideally, I believe such funding should be means-tested
Funnily enough the 11+ and NVR/VR tests are a pretty good indicator. That's why selective schools use them.
Maybe certain level of potential, but often highlight more about a child’s family background, especially those who can invest time and money to give their children an edge. The family background is one of the most significant factor of one's ultimate education outcome anyway. But that does not equal to the wider promising young people who would excel in academic. 10 year old is far to young to identify as such.
Not all comprehensives offer Latin, Ancient Greek, 3 sciences, music as standard.
This is another good reason to convert these grammar schools into comprehensive schools, so broader students can access these opportunities. At least not using NVR to decide with who should learn music or Ancient Greek?
It's great that there are specialist schools at 6th form and also great that there is a wide choice of schools - including many specialist ones - at 11 too. Isn't choice a wonderful thing.
However, too many choices for using state resources might not be a good thing. It can result in inequality and inefficiency, so a right balance is needed.
Isn’t democracy a good thing? Maybe we should ask the 11-year-olds to vote too?