When it comes to the safety of the money of course bank is one of the safest.But if you want your money to double or tripple or even more you can put/invest it in crypto but no assurance.
Bank and cryto had its own functions. And comparing this two which is safe is questionable . It could be depend of the purpose of your plans to your money. If you want to just keep your money for emergencies or just to save it you put it to the bank but if you want to grow your assest investment is the best options like cryptocurrency. Only that you have to consider the pros and cons.