n Year 12 they are by no means failing if they got some C grades at AS and could well go on to get decent grades at A-C at A Level. By no stretch of the imagination are such pupils in the "inherently unsuitable for A Level studies" category
THIS - this is what the OP is about.
I don't think anyone thinks anyone, regardless of ability, should be able to take A-Levels. They are demanding so prior knowledge and aptitude is important.
I do think there is an issue with pupils who are doing reasonably well and who are on course to get a reasonable grade being told to leave at the end of Y12.
Some people seem to be under the impression that that means others think no one should be 'kicked off'.
Oh - and schools do advertise their A-Level rights. It is technically correct to say that 95% of pupils who took their A-Levels got an A if you look at the results of the number of pupils who physically sat their A-levels.
And that's the eye catching headline.
It's disingenious to suggest parents should ask about retention rates, success rates etc - because parents don't know to ask. It's what Sir Humphrey would suggest if he was challenged about this. In fact, it's the kind of manipulation he'd be proud of.