But a third of a small percentage of pupils is still a small number.
Maybe some private pupils aren’t as motivated because they won’t need exam results because of the family cushion, so why slog?
Added to ambitious, bright, supportive but poorer families now using YouTube tutorials, bbc bitesize, can see that there are still benefits to taking education seriously rewards are still out there.
There could also be the changing in middle class household incomes coming more from non-traditional trades, meaning there might not be quite as many with as much traditional academic support in private schools?
Or teaching standards and methods in comprehensives are improving to level academic standards?
There will be a myriad of factors.