In fact, this picture represent how the bitcoin system is integrated within the banking system. Bitcoin as an additional element to the banking system provides much more anonymity to fiat transactions, and fiat transactions also provides a stable price to the btc at the exact time of transaction. There is no other options to take unless one of them leave his place forever to the other .
they are both interrelated, we want the bitcoin system but the bank system will never disappear
so they will continue to be like that until both systems are destroyed by the destruction of this world
I don't really like your pessimist opinion. If both systems coexist in interrelation, then its too late to banks to ignore bitcoin and bitcoin succeeded to take place in the real world and may replace fiat in a long term (maybe many decades). Bitcoin adds more anonymity to classic transactions, this doesn't mean it will replace the old system by any sort. Some banks even try to go with the crypto wave and try to adopt with it as a solution for many needs and as a method of paiement that is used by custmers.
