@B202 I'm not sure reopening a 6-y-o thread it s a great idea. However, I'll respond.
I agree with some of your points.
Yes, tutoring in Y3-4 tends to be along the lines of consolidation of age-appropriate topics to strengthen the foundations.
Yes, a good work ethic will get a child (or adult) a long way, and certainly the world of work is not simply about being clever but much more about having the right attitude.
However, grammar schools are not aimed at ‘average but hard-working’ students. They are aimed at ‘bright’ students – the ones that will understand new concepts the first time round and won’t need to have them explained again and again and practised 100s of times. Lessons should move quickly to enable the subjects to be explored in much more depth than is demanded by the exam syllabuses – to really challenge bright minds.
Any average but hard-working student should be capable of achieving excellent exam results with good teaching, hard work, and possibly extra tutoring if the parents wish to provide it.
The issue I see is that, because of excessive tutoring, many average but hard-working students are getting into grammar schools, which means that lessons at grammar schools must move more slowly to ensure these students can keep up (regardless of additional home tutoring.) This means that the brighter students at grammar schools are not stretched as much as they could be. It also means that some naturally very bright students (that were not tutored, or only a little) are missing out on a grammar place because the average ones with 1000s of extra hours’ practice (driven by their parents) get the places.
My daughter (home tutored, not excessively, in Y5) is surprised to find herself one of the brightest in all her classes at a super-selective grammar. She can tell who has been excessively tutored. She does not feel she is surrounded by ‘bright minds.’
Whatever individuals might think of the grammar model, I think it is devalued by the excessive tutoring that goes on.