Personally I say yes as our society becomes increasingly dependent upon technology, digital currency will become a more popular means of paying for different things and it is more effective and instant. I haven't used much physical money in the past 8 years and I rarely had any problems with that.
What do you guys think?

I think digital currency can replace paper money also can not replace paper money.
1. Can replace paper money
digital currency can replace
banknotes if all people in a country have used a digital currency to transact. In addition there are regulations from the government to use digital currency.
If there is no government regulation then the digital currency can not replace the banknotes because it includes government policy in a country
2. Can not replace paper money
digital currencies can not replace paper money if people do not want to use digital currencies and governments in a country do not deign to provide
regulations on digital currency