This question gets asked every time. The official position is that noone is allowed to stall forever (except denmark). Unofficially it has been recognized that Sweden joined before the euro and they’re seen as exceptional compared to Poland, Hungary, Czechia and Romania. These four countries are the focus of the ECB, but, to answer your question, since none of them meet the economic criteria yet, there hasn’t been much push from Frankfurt, since their economies aren’t stable enough for monetary union.

Iceland has a small economy and its biggest trade partner is the EU, they’re already a member of EFTA. The Euro would benefit them more than harming them, the real issue was always fishing rights and legislation

It’s literally a 5 minute Google search.

The UK and Denmark joined before the Euro was a thing, and thus, were allowed to stay out. No other country that joined after 1999 ever got an opt out, because this is not legal anymore.

Holy shit, you’re not lying. The literal first Post on his Twitter