My Danish bank has to tell customers that "it is a good idea to have at least 2 cards, as you will otherwise have a hard time if your only card gets blocked for

My Danish bank has to tell customers that "it is a good idea to have at least 2 cards, as you will otherwise have a hard time if your only card gets blocked for some reason". So in Denmark many see no reason to more than a single card. BTW. We don't have a concept like "credit score" at all.