It's useful to read some examples to see how devastating this is to children, and how unfair it is that high achieving young people who have done well all throughout their education have suddenly been downgraded.

https://twitter.com/lewis_goodall/status/1295069110829752323...

And this describes the advantages that private schools got: https://twitter.com/hugorifkind/status/1295292925463724032?s...