Education and achievement shows a tangible element of self discipline, which is certainly needed to succeed in aviation. It also shows a tangible level of intelligence. Note the word "tangible" because I am not suggesting for one minute that anyone may not be self disciplined or unintelligent! Its just good proof of what is required.
As for Maths and Physics, yes a good pass at GCSE level would help. However, I take myself as an exception, as I was not proficient in either, however managed to first time all the written stuff, average out at >90% and bag all the flight tests first time too. Not beating my own drum at all by the way, just saying that the MOST important asset you can have is self discipline and gritty determination.
