I believe this will happen. The world is moving from paper reliance to paperless systems. Usually, utility bills and other periodical bills give the customers option to get their bills via email or other electronic copies. This is the case also in online purchases. They usually just give the customers a copy of the receipts and other documents via email.
It is possible that this will happen pretty soon. On the example of Venezuela, many other countries have already declared their readiness to create a national cryptocurrency. But do not you think that with the arrival of regulators in the cryptocurrency, it will immediately lose its unique value.