You hold nothing If this money not backed by something real or atleast with cash.
The BONDS treasuries not something for sure but they are more like coupons wich show's how good situation the goverment and other people are to keep value of money.
I told my own bank show me stablecoins, cash,or cryptocurrency or gold equlaint with money i have otherwise i own only numbers wich doesn't mean anything just the numbers on screen.
It's mature way to look finances i don't want to my wealth backed by bonds coupons it's speculative and we never know If they keep holding any value at all.
I stay my point: something i can hold in my hand or private wallet that's real wealth and the wealth i can count on.
You have so much to learn, but instead of learning you keep on coming here to spout nonsense. There is nothing mature about the way you look at finance if holding cash is your master plan. Cash is trash quite frankly and it is losing value over time so you need it in a saving account at a minimum or invested in assets that are productive, like shares in a company or an index fund. What are you going to do when there is a freak accident and your house burns down with your bundles of (imaginary) cash inside it? The banks have many redundant systems to keep track of the funds and the central governments of most countries now give a guarantee to back all funds up to a certain limit inside banks, in order to avoid bank runs which can be harmful - this has been effective for keeping relative stability for decades.
sincerely, one problem with op is that, op has actually refused to learn but rather speaking off keys and at some point i was confused on the point of his post and from the look of things he actually has no points in what his saying.
most countries like mine are trying to go cashless and at some point, i think that's a good one for the local banking system because it makes the cases like stealing and money misplacement reduced and, I've been thinking from op's point of view on how convenient and safe it might be to house huge sum of money and to be be frank it's insane for one to just stock some huge sum of money in their house just because you don't want to get it in the bank.
there are several options to store money and since you're in the forum, i think you know that having them in bitcoin is cool and you can also get a hardware wallet just incase you also want to hold something in your hand.
in conclusion, i think op has some personal issues with his local bank and i perceive this as more of a personal issue thank just kicking against local banks.