There someone who is pulling the shadow behind and that shadow will not let the fiat money extinct and fully replace by digital money. That is the reason why a lot of government today are still not adapting and have laws and regulation regarding the ban of cryptocurrencies. Try to search in the internet the CBDC and the families who establish the banks that priting fiat money. They are the ones who are printing money that came from paper and ink only. That is the real free money out there and those shadows will not let the CBDC to come at end.
We should not abandon paper money. It must always be remembered that paper money is the most untraceable by governments, and digital money allows officials to completely control the financial activities of their citizens. Yes, and in many cases it is very convenient to make small everyday transactions in cash, especially if transactions are made between citizens. Therefore, I think that cash will always be in demand. Their mass will undoubtedly decrease, however, to a certain level. In addition, cash should be kept at least as a backup option, when the use of technical devices for making non-cash payments becomes impossible due to various technical failures and large-scale disasters.
That would be one of the main reasons Governments might want to adopt digital money so that transactions can easily be traced however, from my understanding, I don't think launching CBDC in most countries will necessarily mean the abandonment of paper money because we know there still remote locations where this tech are a problem for transactions.