Re: no one is being forced to join the Euro
@FrogAndChips exactly, as part of the joining process they say they'll work towards joining the Euro, but the reality is there's nothing actually forcing them to. The most recent members have even made it clear in some cases that they'll not be joining the Euro, and not signing up to the whole Lisbon Treaty. There are some aspects of the Treaty that are universally accepted, but that's more to prevent a single country (or in the case of Germany, a single province, I think it was Bavaria that blocked the Canada trade deal for a few years) blocking legislation and trade agreements that the rest of the EU has signed up to. Or you know, making the EU more democratic by reforming certain aspects of it, all the very things that people wanting to leave are complaining about it not doing. Another thing that is always overlooked is that the very fact we can invoke Article 50 and leave the EU is as a direct result of the Lisbon Treaty, as Article 50 didn't even exist prior to it. The Lisbon Treaty really is Schrödinger's Treaty, being both removing a nation's sovereignty while enshrining a nation's sovereignty at the same time.
Biting the hand that feeds IT
