If a country were to leave the euro, then the biggest issue would be how to allow for a member country’s currency to exit in as dignified a way as possible whilst at the same time avoiding a run on the country’s financial institutions. The consequences, if badly managed, could be a total collapse of a country’s financial system. And the knock-ons of this for all euro-zone countries would likely be worse than the situation the country would be trying to resolve by exiting the euro in the first place!
