There is no problem with this, which will radically change the blockchain ecosystem financial technologies. but the problem is a new blockchain alternative every day. such as holochain, stellar, tron, iota. they are not all working on a separate network and a common network. he tried to gather this technology under an ethereum roof, but when each project turned into an independent network, those who had various crypto money in their hands continued to make their transactions there as a member of a new stock exchange and spend most of their time on these transactions.
What needs to be done here is that banks can connect to anyone on a single network, such as credit card systems, that can be bitcoin or ethereum node. it may be advantageous to carry out transaction registration and to transfer money and other digital transactions over this network. I'm waiting for comments from the readers of this article. I would appreciate it if you write in the comments you want to add.