This was a thing of the past, people no longer have interest in all these, we are tired of running under a centralized system, that is why ever since the introduction of crypto and bitcoin to be precise, things have always changed from the norms, because they people realized the way it could help them have control over their finances, that is why it has turned a blooming development and invention every since 2009, the banks may exist and always remained, but the people knows what they want and how they can acheive it.
And what are you replacing banks with?
How are you going to take a loan when, with crypto, you first need collateral to take a loan?
How many people are actually using banks as we speak, and how many are dealing with cryptos other than just trading?
In 2020, I wanted to pay for a Journal publication in India from Nigeria and I couldn't do it because there was no option for Nigerian Currency and I went to bank and the bank told me that I need to open dollar account and the process was combersome so I left the publication. So I didn't see any good for the Global Banking system
Lol, so because your banking system in Nigeria sucks suddenly the entire global banking system is not needed.
Let's have an exercise of imagination and say banks in Europe and US stops making transactions, including VISA and Mastercard, wanna bet that you will feel the effect down to every bone even in Nigeria?