Like, plenty of people have names not on the Great Big List Of Dane Names. Those people are not Danes, but if you want to deal with the non-Danish of the world, you have to handle names not on the Dane Names list. OTOH, thinking people writing tax software for Denmark are falling prey to a "falsehood" by not allowing someone to be named ?? ? you're committing the falsehood of not understanding why they're accepting names to begin with.