No matter how much I like Bitcoins , it cannot be used instead of paper money.
It's Volatile
It does need internet
We need to solve the transaction fee problem
There is still updates needed in lightning network
Bitcoins is not acceptable everywhere in the world
Many banks are not in favour of Bitcoins and thus they usually ban the accounts if they are being used
Bitcoin will need fiat for sure
We have people living without electricity and mobile phones what about them ?
What about old people and super young kids ? How will they be able to buy anything ??
No matter how eager we are to transition from fiat money to cryptocurrency those factors above are stopping us from evolving. But those factors really need to be considered because if a country changed a system, all of the people living in that country shall follow and have the capability to follow. Maybe cryptocurrency is only for privileged people. People who have access to the internet, have digital wallets, have cellphones, have a proper education. Thus, maybe this cryptocurrency is not for all. Not for lower-class people. Not for a third-world country whose poverty is at a high rate.