"Why banks don't
LEND ALL YOUR MONEY."
https://simple.com/blog/Banking/why-banks-dont-lend-all-your-money/If reserve requirements were too high, banks wouldn’t have money to lend or invest in the economy, and we’d be in big trouble. Too low, and there would be no reason for banks not to lend or invest all the money we deposit.
Banks (financial institutions) DO loan out deposits/savings/holdings, which is regulated and insured, thus FDIC (Federal Deposit Insurance Corporation) and US-Treasury department regulations. That is why cypress bank, and many others, didn't have enough money to let everyone withdraw all at once. That is also why banks go bankrupt. How could they go bankrupt if they "had all your money". Because they lent it all out, that is why.
I am not sure what world you live in, but that was the whole purpose of banks and bank bail-outs. They don't "create money" for every loan, only the "federal reserve" is allowed to "create money", and that has nothing to do with loans. (Here in the USA.)
They wouldn't have to "reserve" anything if they were not lending it out. Yes, they use ledgers to "track the lendings". (Lending it to a corporate branch is still lending.) All money goes to the corporate branch, to be lent-out, based on individual banks "loan approvals", except for a percentage which is held on location. The biggest bank frauds is giving yourself loans, approving your own loans for funds you can't ever pay back, using payments from other loans as "proof" of payments to get more. You get your customers money, and money from other banks corporate customers, for those loans. Which is why there are laws regulated by FDIC and FTC and US-Dept Treasury. Limiting those bad banks from doing real damage.
1000 people deposit $1, 10 withdraw $1 now, $1 later, $1 later-on, $1 after that... The rest stays in savings or is "backed" (non-existent, but accepted as existing, based on future loan-payments coming in.) You never get back your dollar, you are getting a dollar that was lent-out and just now paid-back by someone who just paid-back a loan from the bank, or borrowed from another accounts savings that was just deposited.
Value only increases with loss. You borrow $1000, but you have to pay back $1200, thus, you LOST $200 on something that should have only cost you $1000. Thus, there are now $200 extra value for the bank to distribute or "claim" as payment. Devaluing is when the government "creates money from nothing". Which is a still not that much. (Most "bills from nothing", are replacements for damaged, or retired bills/coins. The rest is "over-printing", which adjusts for population and SOME losses. Including reprinting bills that others are holding illegally, which have not been recorded as in "circulation". Because if China held all our physical paper money, we would have nothing left to physically circulate. Bills are just "notes of funds", generic "checks", that represent held funds or funds that have been lent.)
There MAY be some banks that don't do standard banking, but I don't know of any who don't operate like this. That would be a deposit-box bank only, or a reserve-only bank. They HAVE to lend your money, or charge you to hold your money.
Credit lenders are NOT the only place to get loans. They are just bigger risk-takers than banks are. Which is why they have higher fees than banks have. You have to have a lot of assets and perfect credit to get a loan from most banks. Credit card lenders, lend money acquired from investors and borrowed money that they got on loans, only require a signature in many cases. Banks use "credit services" to provide additional security to the credit lenders, and to provide us with credit we can actually obtain. The loss is still towards the credit lender, not the bank. Which is why banks often use Mastercard or Visa for a credit lender service. They have no actual ties to MC or Visa themselves. They are simply pushing the risk to an outside source, because they don't want to assume those potential losses which places other customers at risk, by giving YOU their accounts funds. Why, when they can just "hook you up" with someone-else that is willing to take that loss.