This is not a design requirement - just something to keep in mind when designing a system. Otherwise, you're going to have a tough time requiring a `tussenvoegs

This is not a design requirement - just something to keep in mind when designing a system. Otherwise, you're going to have a tough time requiring a `tussenvoegsel` form field in cultures where nobody knows what that is (spoiler: it's the Dutch "van " prefix; been there), or requiring that everyone has a middle name (USA), or a second surname (Mexico). In other words, the usual problem is not "how do I fulfill all of these things?", but "how do I convince the USians that ASCII is not just insufficient, but that not even using Latin-1 won't do?"