I call Bitcoin a gem. Because once paper money will have no value. The only reason behind not having the price of paper money. People's interest is changing day by day. Now people are leaning towards digital transactions. Now no one wants to do cash transactions. That is why the importance of cryptocurrency has increased a lot.
Bitcoin is a currency. Which you can use it for any purpose at any moment in any place. Just one transaction. In my opinion, the government of every country should give legitimacy to cryptocurrency. Has already given legitimacy from many countries.
Check the history and it's value and we can already call it a gem, but paper money will never cease to exist it always be there, the government of many country will not let paper money to vanish, it's a sign that they are still in control and besides not all country has internet access compared to first world country, where internet is never an issue.