I think it still safer to keep your money in a bank compared to crypto. In banks, there are paper works and signatories, so whatever happens you have physical evidence that you put your money to them. Besides, you can go to your bank anytime you want to check the status of your money. But on the other hand, its more profitable to invest in crypto than in banks.
That aside in a growing world full of change why would anyone want to secure cash that can be used as investment, and every investment comes with its own share of risks and profits, one that we are all willing to take.