If your using selection by ability then, why do house prices "matter"?
minifingerz,
Your DC could go to a musically selective school or have one on one instrumental lessons at school. An academy chain or 'linked grammar' could provide the additional mathematics off site or remotely. Maybe a 'comprehensive' might have the ability to meet the maths needs. If literacy improved then could move to grammar in later years. I would be ok with these options being provided for my DC.
I don't believe we will go back to the old Sec Mod/grammar system where only bright rich kids will get in ahead of brighter children from impoverished families.
Are you really going to try to make a case that the 11+ is the only exam where prior learning makes no difference to the outcome?
No I am not but in a previous post I gave an example that no matter how much money you use to tutor a struggling child you can not get them all past the current 11+. And I do believe the real difference in early years is made by the parent and their environment, not the school. So because of that will probably get more rich than poor children at grammars, but that is called life!
because there isn't any line where if you set it there are sheep on one side and goats on the other.
Again your just setting up straw men arguments, going back to the old binary system, Yawn. Try moving into the non-binary future, there is more than 2 animals on a farm, and a farmer doesn't draw lines, he tends to ALL his animals.