Bohunt school features GCSE results that are squarely in the average bracket, as shown by this table. Only in Statistics, Global Perspectives, and Chinese and Polish did the majority of students achieve A* - A. In the case of Chinese and Polish (both immigrant languages) a total of four students sat exams, two in each language.
Mehitabel: 'My point was that those people who got jobs without top exam results climbed to the top of their particular career once they actually started in work.'
In order to do that you have to actually get work, and not surprisingly employers look at proven ability (and even willingness) to work as a means of weeding out applicants.
The complacent idea that this is changing and that therefore second rate academic results will get you a job is wishful thinking. What employers do if they decide that academic results are not the be all and end all is look for individuals who manage the excellent results as well as demonstrating multiple soft skills and lots of provable involvement in areas separate from schoolwork -- volunteering, starting up a small business, setting up a charity, excellence in sport or music or art, etc.
As to people becoming high flyers despite poor results in school -- an indictment of the entire system there. Why bother with school at all if it is so irrelevant?
Your comments about signing agreements and hand picking students who can be guaranteed to behave for Royal visits are an implicit acknowledgement of the fact that poor behaviour goes on and is not stopped in the average school.
The remark about being able to know who will behave and who will not is followed by a question to parents of teens as to how they know their DCs will behave.
BR -- indeed, you do need to train children beginning at age five. It doesn't have to be draconian, harsh, Victorian, square peg in round hole, etc. Just respecting the fact that children need rules and thrive in orderly environments, and can be expected to take ownership of their own studies.
Actually, the training should be started earlier, at home, but it is not too late to start in school.