Yes it is quite possible, if the transaction is bitcoin increasingly massive and ever-increasing bank transaction will certainly continue to fall and the bank eventually will disappear.
Not a valid reason and illogical
It's not possible in this decade or maybe centuries, nowadays bitcoin have huge transaction and bank still be a key in all country. Bank will follow government regulation and controlled by government so it wont disappear even bitcoin transaction increasing massive.
Maybe Bank will disappear when all of people in the whole world use computer in every activities, nowadays lot of people don't have a computer or don't understand a computer. Let say poor people in Africa, Papua new guinea, etc, who don't know how to use computer/device.
Do you ever think if bank disappear and no paper money will help poor people without bitcoin miner to life and survive?What makes you think that bitcoin will be the currency once the banks have disappeared and paper money were all burned down? If anything, there's a much higher chance that these people will go back to trading goods in exchange of other goods. It is called the barter system and I think it's a lot better than having fiat in a poor country. People will be busy planting trees, catching fish, hunting deer, only because those are the only things that we really need. We might go back to having a primitive life but isn't it a lot better than all these technology. You can research about how depressed a normal person is in this era.
The only reason why the poor people would start using bitcoins is when they are forced to do so. Otherwise, their economy will take a step back and go back to doing older ways.
