The good thing about it is when war broke out in your country, and everything is in the chaos that you couldn't even bring some money with you because the looters are all over the place, you have the option to keep it in a wallet and just memorize the phrase seeds and other important details to get it back once it back to normal. You can walk in the city naked pretending to be a homeless man without anything but in reality, you are one of the rich human beings that has kept their assets securely than keeping them in the bank.