Well then customers won't get any interest. And therefore you will have no customers. And therefore no deposits.

People aren’t keeping their money in Chase accounts for the 0.01% interest, given that the risk-free rate is currently >4.5%. So you may want to rethink that.

Wouldn’t that just be a storage facility?

Essentially yes, but presumably one that’s safer than your home safe or under your pillow.

Doesn’t seem like you can get a banking license for that. Look up “narrow banking.”

Yeah there are precious metals demand deposit vaults that do exactly that. The cost to have that fully insured and also audited to make sure your exact serial numbers are actually stored and not secretly being loaned, etc, it works out to roughly ~0.4%/yr cost to store money in a bank like that. Which compared to ~0% interest rates in a saving account isn't that bad I guess.

Cool ... I guess you could vlog about the precious metals and get 1%/yr from Youtube to make up for it ... Keep saying "my precious" and you'll probably get a few million followers on Tiktok