BTC is gradually gaining its grounds in the financial institute. Most people prefer using bitcoin as a medium of exchange. Before the advent of bitcoin local and foreign currencies were the only means of financial transactions. Currently BTC has gone beyond bothers and has also made transactions safer and faster without much stress of converting from one currency to another. From my own opinion its a better way of accumulating wealth and secure a perfect future of cashless policy
I don't really think most people today prefers using bitcoin as a medium of exchange. Some doesn't even know what bitcoin is honestly. And we have the problem with bitcoin having this image of scam and illegal activities. From what I've experience, fiat is still the efficient one to use. Less hassle with the online banking using credit and debit card, accessible to all the stores out there. Bitcoin has problem with that, I don't even want to talk about the volatility of bitcoin. I am hoping for bitcoin to reach that certain popularity, but I don't want to believe that it is already happening even though it's not. We have to face that bitcoin has a long way to go.