Europe simply just had to. There was just too much travel between countries that the exchanging of funds was just a bitch. Banks doing the exchanging really made out though. Its kind of a double edged sword.
They could have just made stricter rules to exchanging money, so there was a set daily price. You could honestly get a 3-5% difference from bank to bank when exchanging money.
China, god fuck china. Forces their money to be like 5% higher than it is actually worth. Thats the bullshit that needs to be stopped. Or a unified currency, thats not managed by something like the federal reserve or back on the gold standard (LOL)
And the ones that believe it and distribute it. Look at religion 
:bigclap:
Had to use this I just noticed it