Grasspigeons, absolutely understood - and I was going to add a comment to that effect to my original post, apologies.
OvertheUnicornrainbow - when you say Generally home-ed parents are very concientious about our DC education, I wonder whether you are speaking particularly about the subset of home educating parents that you meet / know? Is it possible, do you think, that there are other subsets that you don't come into contact with and thuis don't really know?
Where I used to work, 100% of girls from the local GRT site were withdrawn from school to 'home educate' at 11 - so that would have been c. 15% of our school roll who went on to home ed after Y6. That was a community that was not at all conscientious about the education - in a non-GRT sense - that those children received. Their education from 11 was wholly in the GRT way of life - childcare, looking after trailer / other facilities and being prepared for marriage within that community. In that local area, this community formed the vast majority of HE families very different from your HE community, and very different to the HE community I belonged to .
Do you think that it is possible that you have local HE families who you never met, in which parents don't care about their children's education, and who HE for reasons that you might not necessarily be supportive of? So do you think HE is ALWAYS a good alternative for children?