for sure. local currency will not be replace in any aspects paper money still the most used currency
inside a country we cant change that in anyhow many things will need to discuss about that.
I do agree that local currency will stay no matter how many cryptocurrency are created out there. paper money maybe the most used tools of money today but i think cashless society had been promoted to several country, and probably will replace paper money in due time. yes we can't change it as the government is the only authority to decide on that.
it will never happened even though the technology would be more sophisticated, the Government will not ever dare to take the risk due would be easy occurrence of theft, money laundering, etc. that make them on problems even though can be traced, but it will take more time and much different with paper money although there is counterfeit Money but easy for us to know that's counterfeit money.
Bitcoin is anonymously transaction and i think government don't granted bitcoin to be a future money.. but since bitcoin is a part of technology for new generation and i think we can also use it the same as atm as our alternative payment locally but the problem they will added a tax for it..
This is i think many people will not accept if they will added a tax for transaction.. that many people who are using bitcoin do not want it..