Technically, banks are the ones controlling governments. Govs don't control the banks. So bank will still be around for a long time. What they do is that they adapt to how the tech advances. And govs just have to create regulations to help these bankers in order to help themselves(govs).
They don't but the fact that they are regulating the bank, they have the power to control it.
Also, the government have the power to print money which is not transparent to all of us, they can take advantage of doing illegal activities when they are in control. The biggest corruption happens within the government, so we need to change that as its our money that is being stolen, crypto is the solution as it promotes real transparency.
These are why the govs fear decentralised cryptos. They have been using regulations to save their arse all the while.
They control others and at the same time can get away with paper cash if they are the ones doing the dirty stuff.