Whether they loan, invest, or do something else is their decision.
There is something really fucked up about about the idea that society owes you a risk-free place to put your cash.
We accept other risks in life - some job are dangerous, my health could be gone any moment, I might be unable to pay for trratment. My house is not safe from a calamity.
But as soon as money is not safe, there is a fucking panic.
You don't need to be a bank to make a loan, I can lend money.
Me and you are regulated more than the banks are, because we are not allowed to do things banks do.
Legally the 'bank' means you have a banking licence. That is all.
This licence allows you to create money. This is a huge superpower, but there are terms and conditions attached to make sure it doesn't break the whole economy.
You can create money, you just can't pass that around the monetary framework. That's what the license is really about. It doesn't feel we disagree. What you wrote I totally agree with.