bitcoins or banks, it is a difficult decision because each one has its advantages and disadvantages, as we already know crypto is a decentralized and global digital currency, that is, outside the control of the banks.
Beyond the aforementioned, generalizing both fiat currency and cryptocurrency can be called money or currency. Both, in essence, are means of exchange that are used to store and transfer value. Cryptocurrency, as well as fiat currency, can be used to buy goods and services. Both have their value governed by supply, demand, labor, scarcity, and other economic factors.