There was (is) a similar currency experiment in the UK, which of course does not use the Euro, so it may not be just a reaction against the common currency. Bartering is also being experimented with. You might expect German hesitance due to the burden of many other members states’ fiscal and budgetary crises. The economic union was thought to be beneficial, since it removed trade barriers, eliminated currency issues, and allowed a freer flow of goods. The trouble starts with the administration of standardization of tarifs, regulations etc, that need centralized control. This runs against the grain of national sovereignty. Europe is one thing, the European Union another, and the individual member states something quite different. But, I think abandoning the Euro is unlikely as no doubt it would be very complex and costly.