Currencies

I was walking down the street to Tesco when I suddenly thought, "Why do different countries have different currencies?" So I thought about if it was because of communism. Was it just because each country wants to be different in some way? That brings me on to the subject of Slovakia switching to the euro. Why are they switching to the euro if it will only increase prices, will take a very long time, and will take away some of the character of the country. That would bring me on to another subject which would be license plates. I will do that one in my next post. Back to the subject. Some time, (hopefully not soon) all of Europe will be using euro. I don't agree with this. It is like throwing history into a paper shredder. The history books will be changed which will be a waste of paper. I have a dream! Oops! Theres nothing I can do so why sit here and complain?