What do you think?
I understand your point, you are looking at it from the perspective of the much fascinating evolution of currencies from the Barter form of exchange to the transformation of the currencies over the centuries.
The very known first form of money was through the trade by barter system where people engaged in the direct exchange of goods and services. During this period, the people value worths of goods to be exchanged by their desired goods or services. But because there was inefficiency and limitations in this form of exchange or transaction, people of the ancient time thought of the need to migrate to the commodity money.
In this kind of transaction, exchanges where done with items that had value in the eyes of the people of then, such items included precious stones, cattles, etc and these commodities which also included salts were widely known, valued and accepted in markets. From these commodity money, there was the introduction of the metal coins which were the currencies we all experienced at a point in time and are still experiencing today in some parts of the world. Governments also adopted and started minting these currencies for the market and individual use.
At a point in time, the government then introduced the paper money to ease trading since most of these metal coins where heavy and there was a monumental thought that the metals could also be transformed to just paper monies where you have the value of the money printed on currencies. These improvements also led to the invention of banknotes and the banking system itself which is yet one of the most valuable industries in the world now.
Now, with the advancement in the emerging internet, information technology and the fintech, these notes have been digitalized which brought about the advent of the cryptocurrencies through the invention of the Bitcoin currency by Satoshi Nakomoto as another digital currency that have its own value based on the decentralized blockchain technology. These cryptocurrencies operate independently and are only valued or devalued by its users making in it possible for more transparent and universal transactions.
Having journey through the abovementioned evolution of currencies, I think it is only normal for a curious mind to ask if it will replace the current paper money and banknotes. The most sincere and straightforward answer to give to such question is that the future of Bitcoin is still very much unpredictable and it will not be a decision that will be taken by people alone but governments of different nations, and with the current realities, that won't be possible any moment from now.