Man you say that countries are moving from cash to crypto and you show us Sweden's example but if it won't be bitcoin or any other altcoin ( can't understand ) and that will be trackable also, than isn't this against cryptocurrency rules? They are made for anonymous transactions. Also I can't see any idea on that because if they are going to do all like you said, than we are already using simple payment methods and it has no estimation to be added.
Digital currency doesn't mean sweeden will adopt bitcoin may they has create their own currency under control local bank. as an example paypal,neteller,skrill,paycash,etc it's digital currency so if they have their own digital currency it will not against cryptocurrency rules.