I have been seeing the progress of cryptocurrency these past few years, and I've been thinking, will it definitely be a replacement for physical money and use crypto as a primary transactions in our everyday life?
It could happen in many people's lives, but I still don't think that physical money will be forgotten by many people even though one day cryptocurrencies can replace traditional transactions that are often carried out by fiat money.
The transition from physical cash to digital cash is possible though I think it will take decades to centuries to happen. Of course physical money will not be forgotten because if the time comes when physical money become obsolete, it will become a collector's item where it can be the content of several museums.
Until now I only thought that cryptocurrency was just an additional currency that could be used by many people in ways and methods that were different from fiat money. So what you are asking is indeed very possible, but to replace physical money, the progress of cryptocurrency needs to cover every corner of the world, including remote areas that currently still rely heavily on fiat money.
I think of cryptocurrency as an alternative way of online payment. It never came to my mind that cryptocurrency will replace fiat currency ever.