We still need the central banks to manage our traditional cash system.The traditional banks cannot be eliminated fully. Even though blockchain technology has emerged, it doesn't completely remove intermediaries.This is evident in centralized cryptocurrency exchanges where middlemen still have control over your funds. Governments also play a role here because these exchanges must follow government rules, such as Know Your Customer (KYC) and Anti-Money Laundering (AML) regulations, to operate legally in the country.