The former German foreign minister Sigmar Gabriel has proposed offering Canada partial membership in the European Union. "Maybe not fully integrated like everyone else, but maybe partially," the Social Democrat told the Bremen-based newspaper Weser-Kurier in comments published on Saturday. Europe must resist US President Donald Trump's push to make Canada part of the United States, said Gabriel, who was foreign minister from 2017-18 and vice chancellor from 2013-18 under then chancellor Angela M
Denmark has a dispensation they arranged when forming the EU.
Sweden and the other countries does not.
When joining the EU you are commited to switching to the Euro when you have fullfilled the criteria for doing so, Sweden has decided to not fullfill the criterias required and will therefore keep the Krona for the forseeable future.