People will always prefer to put their majority of their money in banks as they have more faith in it and they don't trust bitcoin fully and I don't think that bitcoin can ever take place of fiat in future.
You didnt even give it a little chance. But I do agree. It is some imaginary idea of people who went to a conclusion without even getting facts. There should be questions before making a big decision like that. You will have to please the government for that to happen.
If it is bitcoin that we are talking about then you can be 100 % certain that there is no way that the goverment is going to let that happen. There is no way for the goverment to have an absolute control of bitcoin therefore there is no way that a country is going to let bitcoin replace their fiat
Even if bitcoin value reach 5000 dollars unit, bitcoin wont be replacing any currencie, it may become an ivestment option and just, bitcoin isnt here for destroy or replace, but to clear minds and show the people power, something countries forgot long time ago.
Just like gold. Look at its price.
Actually it is more like changing the bank system. The transaction fee, the system of credit cards and a lot more. Those banks take more when it is people's money that they are holding. They are just storages or keepers but when they found out they can use it for investment then now they are rich.