> I trust that my bank is well-enough managed to provide me with physical currency up to the amount of my account balance
It (probably) is, but if all of your bank's account holders asked for that at the same time it would be what's known as a "run on the bank" and you'd very quickly find out that they don't have anywhere near enough physical currency to cover even a fraction of their account holders.
It (probably) is, but if all of your bank's account holders asked for that at the same time it would be what's known as a "run on the bank" and you'd very quickly find out that they don't have anywhere near enough physical currency to cover even a fraction of their account holders.