First I thought it could make sense considering the territories have some differences in taxes on imports. But in that case, why is Åland missing then?
Perhaps he is thinking of how marriage does not change your last name, but rather gives you an extra, optional last name. [1] The French ID card has two last name fields!
Err. It still does by default change your name (if you're a woman). But you can ask and keep your 'maiden' (ugh) name or have both. It gets a bit trickier for kids' family names...
