'Surely it's just split site streaming in a way.'
No it's not. There's no way back from an 11+ fail. You don't get to move between sets, or streams, further on - you just get relegated.
We live where there is a complete divide between those who pass and those who do not.
Ds is dyslexic, but not typically so can achieve average results. He has had NO help at all with this, and recently failed by a small margin, which the school will not appeal because this is his standard of work on a normal day.
His IQ is >140.
Now we have to put down schools we hate that are filled with teachers who have given up on the children and have no expectations of them
while all his NT friends are off to the lovely grammar school and a life of opportunity
Should he have been cast aside like this at 10? Really? Should not ALL children who try hard, are keen, polite, helpful, diligent, intelligent and very very anxious to do well, not be given exactly the same opportunities at least into their teens?
If not, why not?