Such habits are hard to break when you are raised with them, aren't they? I have a title of my own, but I would gladly invent a new one that suits our situation better. Did you have a particular idea?
They are not. There are some coins, but they are not very valuable. Paper currency is more valuable, but credit seems to be most valuable of all. My lover has done a much better job of figuring out how the credit and bank accounts work here; he could probably answer your questions, if you have them.