Saving money in the bank and saving money in crypto have different purposes. Saving money in the bank is done so that the money we have is safe, while saving money in crypto is used as an investment. the comparison of the two is clearly not the same.
It is true, Crypto has an advantage over fiat, namely in price. The price of Crypto can go up very high in a short time, therefore most people who save money in Crypto are for profit (Investment). And only people who understand Crypto will save money here. And saving money in the Bank and in Bitcoin, if I think it is clear that saving money in Crypto has a higher advantage.