It looks like paper money will decrease in the future. Financial institutions also continue to innovate to facilitate the public in the use of payment instruments, credit card is proven. Something that was once rejected by financial institutions.
In highly developed countries, the amount of paper money can really decrease, if there is no collapse and there will be the development of electronic payments.
future is of paper money. paper money is the truth that no one can decline. bitcoin has nothing to compete with it. it has its own importance and bitcoin has its own. i think paper money will remain like before and it has nothing to do with bitcoin.