I'm not envisaging it being used as a badge of descent, in the way you might display being descended from Charlemagne with a badge. I was envisaging it applying to the persons born into and living that lifestyle. If great great grannie married a gorj and lived in a semi in Surbiton, the kids might not qualify for the categorisation, unless they did more than go camping for the holiday fortnight, if you see what I mean. Of course there could be a descended from category, if it was thought appropriate.