I've seen this posted several times, by different FReepers, and I'm curious ... just how much would you be willing to pay a bank, to keep all your money, and everyone else's money, in a vault? You do realize that such a bank could never make a loan, don't you? How do you suppose this bank would make any profit, in order to pay you interest?
That is a market problem not a regulatory problem. How businesses make money is determined by the price system.
Banks would have to survive like any other business and charge for services.The banks would actually have $1 of cash for every dollar they owe to their customers: there would be no chance of a harmful run on the banks
They take that cash and debt roll it up into multi-billoin packages, sell it 15 or 20 times, then call it a bond and trade it on the stock market until its no longer of any value. /s