Its possible but it make take decades before it happen. Bitcoin may increase its value but it will have a hard time to get in the main market around the world. Maybe the whole cryptocurrency can be a good alternaternative for a fiat money but it will never be the main currency I think. Our government will always find ways to protect fiat money, but a least cryptocurrency will be accepted around the world in the future.
Yes that's right. Bitcoin is very good and a big help for our future. It will also lower the rate of poor people in this world. It can also rise our economy.
The future economy of a country not only depends permanently with an action but country is required to look into everything with the passage of time as it has to take care in different occasions.
In case of crypto currencies, it is useful to use it for trade and as investment source as well as payment mode which will be more interesting if a country proceed for it like recently Germany also did it not only as investment source but payment mode is also available in their country.