Why don't schools in Year 10 already pick Methods/Spec kids?

[HUA0007]

School should ONLY LET serious study focused kids in Yr10 CHOOSE
YR 11 Spec.

Schools should force kids to do Yr 11 Methods

But only teachers only focus
on kids
that are prepared to do exams.

I'm over 18 it's just how I predicted in 2018 (when I was 16).

Schools have to start streaming for MATHS earlier.
In Australia, it's so Australian schooling for STEM.

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