The pro-independence Scots say, "Don't worry about the currency, we can still use the British pound sterling. And if that falls through, we can probably use the euro."
The pro-union Scots say, "The English won't let us use the pound sterling, and Europe might not let us use the euro, and if we have to create our own currency it will be a disaster."
BOTH ARE WRONG.
The Austerians in charge of the pound and the euro have so horribly mismanaged both currencies in the last six years that both the UK and Europe are recovering worse from the 2008 financial crisis than from the Great Depression. The opportunity for Scotland to have its own currency is the main reason to go independent. If they're not going to have their own currency, then they should damn well maintain a political say in the management of whatever currency they share.
Pictures (and more words)—and the lesson for the USA—after the orange highland sheep turd.