I'm just wondering...
What is to stop a parent, two years before secondary allocation, checking what GSCSs / extra curricular activities are on offer at their preferred school and then signing DC up to "mandarin" classes and "oboe lessons" so when they are not offered their 1st preference school they have some solid "grounds for appeal" as the 2nd preference school does not offer a Chinese cultural exchange or a woodwind orchestra?
If it is possible, are some parents doing this, and if so, why don't more parents do it?