I dont know about that. I own physical gold and silver, in my possession. I am not a central bank. I dont have a ton of the stuff, but it doesn’t take much to take possession.
I have a few thousand in the bank. I can just walk in and demand cash no problem.
For me.
If a whole bunch of my neighbors try to do the same, well, that's when the intellectual exercise of knowing the bank only has 10% of the cash deposited on hand develops a frightening reality...