Earlier quoted context omitted.
> By storing your cash in a bank, you are exposed to both the bank's insolvency Only for very large amounts, at least in Europe, the central bank insures your money from its own reserves in case of bank failure up to a certain amount, AFAIK typically in the hundreds of thousands of €/local equivalent.
If a bunch of banks go under at once, or even one big bank with a sufficient number of claims, who's to say the insurers will even be able to pay out on that? Nonetheless, I always find this type of apocalyptic thinking to be humorous - why do people think that their cash will be worth anything if the financial system collapses? Another motivation would be if you are concerned about having your assets frozen.
As an example, in the UK personal deposits of a failed bank are guaranteed by the Bank of England up to £75,000.
The Bank of England can always cover the amount, since they can simply print money as needed.
http://www.fscs.org.uk/what-we-cover/products/banks-building...