I totally disagree with your opinion. It's not the same measures as FIAT money because if you want to save that money you need a bank account since you cannot store cash in a personal vault at home. In the other hands, bitcoin can be stored in an offline wallet encrypted with complex algorithms installed in our personal devices or even without an active wallet, you just need the private keys who can be stored in a writtable metal or even a small piece of paper.
You can store your cash, gold at home in personal vaults or basements, anywhere you think secure and safe, but it's what you think and I agree that storing those things at home is very risky. Your home can be damaged by water, fire, explosion or natural catastrophe which can knock your house anytime. Storing them in banks is even not completely secure as there are reported bank heists in history.
Generally, one more thing to say no with this method, it is too cumbersome.
In contrast, storing bitcoin is not cumbersome and it is truly easy, flexible, portable and more.
The bullish case for Bitcoin.