I've literally never heard of a Comp which doesnt set children regardless of how small!
Again I'm sorry but this is nonsense. and the constant focus on Oxbridge as the only measure of success is ridiculous.
for those who don't know, all comps have sets where "very academic" children are taught according to their ability. Ie Set One is the top set, the next set down is Set Two etc. In my school it went down to Set Six where you found the children with significant additional needs. Sets were subject specific as well so a child who does well in English but less well in Maths would be in Set One for English and Set Two for Maths (as was I). You would move up or down Sets depending on your progress throughout the year as well.
I was in Set One for most subjects other than maths which has always been a closed book to me.
My DS (18) (who has just started University) was a "bright" child, in Set One for everything.
DD (15) also bright - but perhaps not as outstanding as her brother - is in Set Two for most subjects (she still does very well and is an average-bright young lady who loves reading, history and music. She's chosen art, history and music for her GCSEs and is enjoying all). She's mostly obsessed with horses anyway, has just passed BHS Stage One at her riding school and is considering going to a college at 16 to pursue a career in the equine world.
Each Set learns at a rate and pace appropriate to their ability level and each has a different teacher. Set One study harder material at a faster pace. My DS and the rest of Set One took their Maths GCSE a whole year earlier than other sets (at the end of year 10) and spent year 11 studying Further Maths/AS Level material.
A much lower set would have taken the Foundation level Maths GCSE at the end of year 11.
So the argument that in a comp system the Superstar Exceptional Mastermind Children are suffering by being dragged along with the thickies is nonsense. It does not happen.
DS's friends have started at Universities ranging from Oxbridge and Edinburgh (where his best friend has just gone) to ex polys this September, depending on a variety of factors (not all ability level. Some wanted to stay close to home, some just wanted to go to newer universities or liked the courses there better/wanted to study less traditional subjects).
DS totally fell out of love with Maths at A Level and dropped it (unexpected as he'd been a Maths wizard since year 3 regularly winning competitions and being part of the "Seren Network" with which he did an Oxford summer school in year 10). He instead threw himself into Computer Game Design which he developed a passion for and which he is studying at a non-Russell Group Uni. He's loving it and I'm totally supportive of what he's doing as its his choice and forcing him to go to Oxford to study a subject he no longer loves is pointless. It's not just about going to prestigious universities. There are many many more options today than the traditional professional routes.
The point is that what worked in the 1960s worked (for a minority. It didn't help either of my parents) but it's 2025 and the world has changed. Many have pointed out that today's Grammars are mostly packed with Middle Class kids who've been tutored to the eyeballs and they really aren't making much difference to social mobility, meanwhile comprehensive school kids are doing well in a variety of fields. We have to move with the times.