Traditional money in the near future will lose its function universal means of payment and will be replaced by electronic money. The main difficulty rejection of coins and banknotes lies not in the level of technology and in human psychology.
In e-money has a number of advantages and disadvantages. Banks and other electronic payments, bills and small change than financial institutions are much cheaper and easier to operate. The development of e-commerce further accelerates the process of eliminating the traditional money.
In the future it could happen, I know digital currency or e-money will rule the world as it gives us the convenience to transact online, and it would be easy to trace our transaction but paper money will not be out in the circulation.
But even then, you're talking about e-money in a form controlled by the government. Our economy and banking system is largely electronic already, but the control of the supply is still down top-down, from the Federal Reserve and the banking institutions it oversees.
That is the reason for bitcoin cannot be a future for paper money,at least that is my theory.
It cannot be,because bitcoin isnt controlled in anyway,by anyone.
So goverment would not let to erase the paper money,to get some crypto-currency,that they cannot even control in any way.
Yes it will be tough. But btc will surely minimize the use of paper money. Coz it has many benefits over paper money. The govt won't let it happen and that's why it won't full replace paper money