Forgot to mention the other rather serious issue that arose in The Politics Show on home education: Sean Gabb, libertarian writer and editor of the Free Life Commentary, is of the opinion that legislators will soon insist that home educators follow the National Curriculum. You can see his point. As the numbers of families opting for home education continue to grow, the opposition to it from those of statist inclination and from the teachers unions will probably also grow.
Given that the decision to home educate is often made at least partly on the basis of an opposition to closed, structured, pre-prescribed learning, the threat of the destruction of the freedom in learning makes a consideration of proportionate response seem rather a good idea.
The phrase "over my dead body" does spring to mind, and perhaps the authorities do need to be aware that if they do attempt such an imposition, and are not responsive to good epistemological arguments against the National Curriculum, it is not inconceivable that strong protest will be coming their way.
Incidentally, Sean Gabb's excellent history and summary of the current state of Home Education in the UK can be found here, via his search option, and under the heading: "Home Schooling: A British Perspective. "