SWIFT system is taking too much time...(slow)

It is costly...(expensive)

It is not for micro-transactions...

You can get kicked out like Russia... (So, as a government, you cannot rely on it)

As a government, you don't have a right to vote in decision making or government in SWIFT system. (not inclusive)

Thanks for the info! Those mostly seem like problems that can be resolved without cryptocurrency.

Oh yes sure. The current system could also work without all the current issues... But who of the parties that control or profit from it now would want a change? Why give up control? Why renounce fees?

To change it, at least one competing system is required to put the pressure the current system. It will not change from the inside.

That is the best argument so far. The money system is a monopoly and competition fosters innovation. The problem is that cryptocurrencies are bad competitors.