Earlier quoted context omitted.
In Sweden, we have Swish, thank God. We don't have Greenland either, so people aren't as worried about 'exogenous shocks'.
Swish is great, but it is sensitive infrastructure. It has already been down multiple times due to DDoS attacks (together with BankId). Don't let Swish completely replace a stash of cash at home.
(tldr Sweden is pretty cashless and a lot of shops don't accept cash)