Bitcoin is boss, not by mouth only, you see what fiat cost that innocent guy trying to do a legitimate trading business. His money was useless for him by fiat bank arrangement, no one knows where the actual fault came from due to too many parties involvement and the banks will do it authoritatively, they set the price and charges as they like on your own money. This can't happen with Bitcoin, all transactions are transparent, you can easily know where the fault comes from and less than $0.3 will complete the transaction in minutes.
Banks set standards in terms of delivery and it is mandatory when someone uses their services.
What we see Banks are too complicated because there are many rules that we must obey and transactions there also have rules that they make according to standards.
For entrepreneurs and businessmen, banks are still quite needed and I think they never care about transaction costs because across borders they still need banks as a support effort in their business.
Mistakes that occur when making transactions in bitcoin are personal mistakes and can be avoided if someone understands how.
But talking about small amount transactions repeatedly in bitcoin is also not ideal because one has to pay the fee, even though the transaction process is fast and more secure.