stone circle, give Oldie her due. I think she is referring to Bristol's rather odd approach which bases contextual offers on average results in a school. So a non selective private school which takes those that other London private schools have not taken (the sort of secondary modern of London private schools - with nothing to suggest that teaching is not good, classes small or parents are unable to pay for top up tutoring) is on the list, whereas our local comprehensive (despite having 93% on free school dinners and huge strains on their budget - but which has recently added a small academic sixth form whilst others continue to take BTECs etc at the local college) is not.
One group of kids is resource rich, the other resource poor. And I think what Oldie was saying was that this boy too appeared resource rich. According to the London Evening Standard last night the Sutton Trust claims that 50% on London secondary school children have some sort of tutoring. Homes with books, parents who prioritise education or who are educated themselves, money for tutoring, all help to maximise a child's grades. It is not just school or type of school.
Its difficult though. Even in the most academic private schools you will get kids who manage to float through doing enough, but not too much work. The ones who constantly get school reports saying they could make more effort. Others will have highly ambitious parents and tutoring schedules that would make even a hardened workaholic quake. From observation, some of the former go on to do very well at University, and can be surprised that they are more able than they thought they were. Some of the latter struggle, sometimes because their self esteem was so built on the praise gained from good grades and coming top of the class.
A level grades won't tell you whether they represent an optimal performance, involving hard work and good teaching, with a bit of luck on the day, or something sub-optimal either because of school environment or a tendency to coast. And whether a prospective student is interested enough and mature enough to fully engage when at University.