I remember doing the Cadbury essay.
In my opinion children are ready to learn far more than the curriculum provides for.
Here in Germany they don't seem to touch on history, geography or science until year 7, and then have to cram everything in just when they are coping with puberty.
And then there's the weird system whereby teaching them to read before they are 7 is frowned upon, nay, strictly forbidden. It drives me mad. Some are 20 before they leave school.
Having said that, obviously young children should be spared the horrors of war and disasters until they are ready for it. There is a world of fascinating knowledge that they could absorb before puberty, which would prepare them for secondary education. I think this is dealt with better in the UK, apart from the exceptions mentioned above.
Vision Disturbances: "Aura" Without Headache?
God those women were a horrible fierce lot that should never have been around children. 
