I can't say how logical you are, but if you keep Ethereum as your bank, it might save your life. Because if there is etherium, it is possible to sell that etherium at any time and get rid of the danger. However, Ethereum has a lot of risk compared to banks. Because if you keep money in the bank, a certain amount of profit will come but ether The more you buy, the more likely you are to make a profit.