[jochem9]

All EU countries are required to join the euro. This was agreed in the 1992 Maastricht treaty when the EU was founded (and the EMU, which was the starting point of the euro). Only Denmark and the UK negotiated an opt-out at the time.

Only problem is that there are no deadlines and it's up to the country to make a plan for adopting the euro.

[riffraff]

Are you sure it's in Maastricht? I think the automatic requirements met -> has to join were added in the Lisbon treaty, Maastricht just established the requirements but didn't force joining, which is why some older eu countries which would meet them haven't joined yet.

[ingohelpinger]

the same treaty says state financing through the ECB is illegal, but they do it anyway.

[epolanski]

They don't?

All EU emitted debt goes towards specific projects.