Both of invest on crypto and bank have advantage and disadvante because bank make your money is secure and you can save your money forever, but saving your money on the bank your money amount is the same how long you save it. different amount of your money if you save on crypto, because by saving or invest your money on crypto your money amount will increase more.
There will be advantages and disadvantages in any aspects. Cryptocurrecy have advantages and disadvantages, Banks have also advantages and disadvantages. All we can do is be vigilant and be aware of things you have made.