>Belgium (because the Walloon/Fleming ethnic divide is so central to its politics) No we don't? Those divisions are entirely decided by the place where you liv

>Belgium (because the Walloon/Fleming ethnic divide is so central to its politics) No we don't? Those divisions are entirely decided by the place where you live and for a few things in Brussels your language proficiency/the language you choose. For the rest only (original) nationality and place of birth (and those of your parents) are taken into account for statistics.