It will take some time probably if it will going to happen but for me fiat or the physical money should not be eradicated. It is good tha people could have a choice whether to use the physical money or not. The good thing of having the digital money is the ease of doing transactions while in physical money the ease of doing small business where still not accepting digital money and still uses the physical money. If all will be digital then there could be a lot of issues we will going to face and that includes the dependency of digital to which it will require network cnnection for onlinr transactions. Costly too because operations, maintenance of the equipment to be used will be added to the consumers.