Plus, Quat, a catchment area is only so big. Eventually parents will have to get their child into their local because there will be no more houses around the 'desired' school.
I feel strongly about this.
My local primary got dire sats results for year 6 in 2007. What they DON'T print in the paper is that 63% of the children taking those exams had SEN.
Parents bus their children out of the area, to another school near by, which despite the ongoing bullying problem only has 11% SEN in year 6 and therefore much better SATS results.
If the parents couldn't bus their children out of the area, the percentage of children with SEN at my local would be lower, there would be less strain on the teachers because there would be more of them because there would be more pupils, the SATS results would improve and the school generally would have a higher morale.
But while the option to bus offspring to a different school continues (for whatever reason and by whatever means), parents will do it, and schools will continue to sink without support.