Why does Johnny's mum not get listened to? Why do we sacrifice one child for the common good? Why not teach all children according to their ability? Why not let the boy I know take Maths GCSE when he did in year 8 - why wait for him to be bored stiff until year 10 rather than go into the A'level class?
This is not what I am suggesting. Running the education according to Johnny's mum is not teaching based on ability. We don't test the ability of children in lower set in year 1. We don't know whether they are really less able or simply disadvantaged by the teaching method. Currently we are sacrificing many perfectly able summer born or less confident children for the sake of Johnny's mum. Real prodigies are very rare. I don't recall the name, but one respected psychologist said that he never saw gifted and talented children, but many parents of gifted and talented children.
Little Johnny could very well have personalised extension activities. It does not require that 40-30% of population leave education without qualifications. I never heard the likes of Johnny's mum to support unemployment and housing benefits for the unskilled unemployed. She wants tax cuts I guess.
Eventually, this perverse effect drags down education for the able and the middle classes too. My eldest DC selective academy has cut an entire subject and sacked a dozen of teachers for lack of funding. So much for liberal arts Bertrand is worried about. It is in the news that 6 form colleges are closing science and language classes due to funding cuts.
Currently SN system is a refuge, but looking at the government plan to shame patients for receiving free prescription drugs by printing “Funded by the taxpayer” on the packages, I guess in a few years some newspapers will be arguing that SN children don’t deserve the money and readers will be better off with tax cuts.
At some point it will become a simple choice of tutoring /going private or failing your DC. Not very different to Shanghai system you deplore.