Nope - I'm not an expert. The point is that I can come up with these reasons, all of which are sensible in my opinion. I'm guessing if you want the actual reaso

Nope - I'm not an expert. The point is that I can come up with these reasons, all of which are sensible in my opinion. I'm guessing if you want the actual reason, you'd have to speak to the officials in Denmark. The other comment, however, gives an actual reason to require them.