poodle, you're leaning against an open door here.
In my city, only 5 of the 29 state secondaries have a sixth form.
This is because they had Blunkett's pinko wanker mob in charge for many years and they decided, in an act of chip-on-the-shoulder class-war, that opportunities for working-class kids would be made much more interesting if they were to prevent them all from getting A-Levels or being able to attend a grammar school.
The only schools which hung on to their sixth-forms were those in the affluent suburbs represented by a Tory MP (now Lib Dem).
The message this city council now sends out is that, if you happen to live in one of the "nice" areas and Daddy is a doctor or a lawyer with a BMW, then you may, by their good grace, have a decent education. If not - even if you are middle-class and want the best for your children - then you are stuffed. (And we have one of the very best secondaries in our area, it just doesn't have a sixth-form.)
Basically it sends the message that, if your postcode is not one of two or three selected ones, your kids are expected either a) to leave school and go and study at the local dive of an FE college, or b) to get two or three buses across town to a school which might just qualify them for something more intellectually stimulating than frying onions (provided they can cope with being sneered at because Daddy isn't a doctor or a lawyer with a BMW).
I'm not bitter.