It's a valid point, but compared to the banking system, when we make a deposit, the money isn't ours anymore. We lend it to the bank with a promise to pay it back as soon as we ask for it (when we make a withdrawal). Of course in some countries, we are covered by deposit guarantee funds and the government, but in reality, we are not even sure. What I mean is: where will the money come from, from the taxpayers? or will they still print new money?
Also when we invest in mutual funds, we are not safe from mismanagement of the money for example.
I start to believe citizens have fewer risks with the fintech industry compared to the traditional system because there's more logic in their system.
In example, they can't invent numbers by playing with the scriptural money
Banks could add the same thing in their contracts, but they don't otherwise people won't really trust them. But if it happens how will they refund us? Their profits? Wich may not be enough on a large scale?