Lovely to see the OP engaging in debate
methinks you lot have written her article for her.
retro- you fail to address the crucial issue here, and that is that thousands of very able children are overlooked each year in the farce that is 11+ because they are poor. Perhaps their parents are immigrants, asylum seekers, refugees that have no idea how the English education system works, let alone heard of or could prepare their child for 11+, perhaps they live on an housing estate with extremely poor primary schools, and so have been disadvantaged since they began school, perhaps they are born to lone parents that must work every hour they can, meaning they cannot ferry them to 11+ tutors weekly (as none would dare set foot in the area they live in!)?
I live in an area with super-selective grammars, they are highly sought-after, 20 applicants sitting the entrance tests per place, pupils travel 20 miles or more to attend (highly urbanised area, not rural). The LA-maintained schools here refuse to prepare pupils for 11+, in fact they refuse to even let parents know whether or not their child would have a chance if they sat the entrance test
, they are not allowed to promote the grammar schools in any way... despite these super-selectives being state-maintained schools!
The grammars are colonised entirely by the middle classes- either those that don't fancy another 7 years of fees, or (and in majority) those that are hypocrites argue their principles would never let them go private, but are quite happy to pay for schooling through their mortgages, by purchasing homes in the enclaves around primaries with 80+% level 5 at KS2. FSM rates at these schools are >2% cf. LA average of 34%.
It is perfectly fine to have grammar schools, but all who are capable of attending should have a fair chance to gain a place.
And I see no way to account for, or remediate the first eleven years of their lives being spent in sub-standard schooling, sub-standard housing, being marginalised by the rest of society.