Especially when I learned that banks only keep a small amount in their vault

1920s thinking? What money in the vault?

When a company deposits a paycheck for an employee, does someone run down to the bank with cash? No. So how are loans going to be backed with cash when there was none involved in the deposit.

This is why I say there are so many misunderstandings since people have ideas, mostly spewed by economists, that are completely outdated.

The quicker people realize we have been using ledger based money for a century, the better off they will be.