Paper money is just a paper. It's no more than a paper which the citizens are forced by government to accept it as medium of exchange. Although its has value because it used by people as medium of exchange but government sometimes print it in excess then makes the value decrease. Money can be created by anything, the important thing is the money can become good store of value and ease people to do transaction. People in the past exchange their gold for paper money/banknotes because paper money/banknotes is easier to use. Now there is a currency that better than paper money which is  cryptocyrrency. The best cryptocurrency is bitcoin, let say we always move from old way to the new one. So it will be a wise decision if we use bitcoin rather than fiat money.