We experience and will still experiencing the waves of changes and uncertainty. Will Bitcoin eventually replace Fiat currency? Why or why do you not think so?
But I can say that there will come a time when Bitcoin will be the most used currency, because as time goes by, fiat money is decreasing. Now people are afraid to carry paper money and go on the streets because there is a high chance of getting robbed, using Bitcoin is the safest because the passenger sitting next to you will never know if you have Bitcoin.
We are moving towards the future and using modern transactions more, it can be Bitcoin or we complete transactions by numbers, so the use of fiat currency is decreasing.