In my country if we save money in banks then we only get bank interest of about 10% per year, of course this is a very small value if we invest in crypto, since 2016 I only filled my savings for daily and monthly needs, the rest I immediately bought crypto, This is a move that will make me a big profit one day.
and thats true if money cant make great move like crypto, because we know what is money.
bank, just for store your money. keep it save, to make transaction on real life, and other thing you need.
When we save money in the bank of course we will not get a very small increase in value or bank interest, the function of banks and crypto is different, we can't fully rely on crypto to meet and spend daily needs, of course we can't be separated from the bank.