Doesn't make any sense TBH. We should've seen it starting to replace conventional currencies by now.
Because there are lot of people still don't know the real catch of bitcoin. Especially, the volatility of bitcoin is the reason sometimes why some of the business company don't like to absorb and accept bitcoin, due to maybe they are afraid of the fluctuation that they might gonna lose in the end.
people especially common people who have a lot of fear about how bitcoin price at the highest price among any other currency make them worry and have to think more than once to start adopt bitcoin technology as their new financial system. to make a mass adoption we can't expect it in the near future , it cost long time . so far so good but the time is not coming and right yet for now.