It is not that simple. Just because Bitcoin is faster than a bank transfer does not mean that for many it will be a fast and simple solution.
Actually some bitcoin transaction is not faster than fiat currency transaction in some extent,because some bitcoin transactions almost take up to three days or more than three (3) days before confirmation, so in that aspects I think both of them transaction speed is equivalent, and from op no one avoid bitcoin it's only people that don't know the rudiments of BTC will avoid BTC
There is no infrastructure. For example, you have money, and you want to transfer money to your relatives. You need a wallet, and they need a wallet. You need somewhere to exchange the wallets for money. Those to whom you transfer, too, will need to find a place to exchange the bitcoins for cash.
Yeah you are saying the reality because bitcoin transaction really needs wallet before it can be able to send to whom ever that is receiving it and before the person coverts it to paper money it really needs exchange platform such as luno and binance in order to covert it's to money.