for example if we use the dollar it will certainly be bad news to see the habits of the corruptors in Indonesia, they will never do small corruption. What if they later corrupted $ 50 million or even $ 1 billion. Countries will be dizzy to tackle such corruption cases. that is if we use only one currency, for example the dollar currency
I think if everyone in the world uses a currency, the deal is easy. People are closer together. The gap between rich countries and poor countries will be reduced. Printing money machines is also easier. Facilitating many aspects: economy, life.