Edgar Allan Pillow
Ero-Sennin
The basis on which the whole banking system (at least for a layman) is that you put money in your account and that money is safe and available for withdrawal whenever needed.
If you cant withdraw at will, then one would as well put it in their house.
It always has been. Firstly, even during Demon people had the ability to purchase or transfer their money out electronically. It's just one particular mode (cash) that had issues. Secondly, it's nonsense to even imply that trust in banking system is determined ir will be influenced by a one off event.