Bitcoin or Real Money
Recently, a survey was conducted among ordinary US citizens. It turned out that according to the degree of preference, banknotes lose to debit cards by only 6 percent.In the polls that took place in May and June, 1 thousand Americans participated. Of these, 27 percent preferred cash. The most popular debit cards - 33%. The situation with virtual currencies is quite good. They satisfy 15 percent of respondents.
For the time being, there are means of payment in circulation that are irretrievably obsolete. They are to taste only 3 percent of respondents. These include checks.Similar studies have been conducted in Asian countries. And here it was confirmed that paper money is still the leading way of making settlements.

I think people will still use real money because it is something familiar in everyday life that it becomes a habit (or even a culture?) and technically bitcoin is too complicated for ordinary people. Certainly the government will also support real money because it is easier to be monitored.