They should be treated as two separate things. Fixed deposit accounts, insurance accounts, and other investment vehicles are a separate class from metals. We hope metals will go up in value, but they really shine as hedges against inflation, as highly liquid assets, and as speculative investments if the fiat system crashes (which many believe it will). Gold and silver, in your hands, can be your best option if things go south. The bank can't decide to keep it in a national emergency, a power outage can't stop you from getting to it, and in the case of a global fiat crash, their values could skyrocket. Even in a local disaster, you could use gold and silver for trading. And there are lots of places readily willing to trade cash for your gold or silver: pawn shops, jewelry shops, banks(?), etc.
Probably a good thing to invest in both gold and silver, as well as bank interest accounts and other financial instruments.
As to safety, it depends on how you're storing them. It's good to have some on hand, and perhaps larger quantities in a trusted 3rd party vault.
A couple that I think are trustworthy include:
https://goldsilver.com/ https://noblegoldinvestments.com/You can get your bullion there and store it if you wish.
Also, Mike Maloney, from goldsilver.com has some good videos on YouTube about the history of money and investing in gold and silver.
If you're storing some at home, it's good to have a vault and/or a good hiding space. Secret compartments, fake containers, under the floorboards, behind the wall, etc. (just make sure rats won't be taking off with small enough pieces). The King of Random on YouTube has some excellent older videos, like how to make a wall shelf with a magnetically opened/sealed secret drop-down compartment, and also turning a mayonnaise jar into a non-suspicious hidden compartment (essentially empty out and clean a mayonnaise jar, paint it white on the inside [maybe add something that looks like mold before you apply the white paint - my idea], then insert some foam lining, and presto! You could even create a false top in case someone wanted to open it [maybe make that look moldy and gross, lol]). He also shows how to make a false bottom drawer lining.
I saw another video where a guy took a spare closet and turned it into a secret room, concealed by a (supposedly) hanging mirror. He placed large safe in there before installing a bit of wall on the bottom of the door to better conceal it when the door was shut.
There are also companies that create hidden compartments for you, like false wall socket pads, etc. Books are a bit cliche, but they can still work. Just remember, it needs to be hidden in a place that no one will suspect, and a place that you will remember. Also, you need to be very careful with your purchases and bringing stuff into your home, etc. If someone knows that you've just stashed a bunch of metals in your house in a vault, they could try to get to it, even if it means threatening you and your family. So, other security measures may be appropriate. Home defense, cameras, emergency button(?). Not to go totally crazy, lol. But do be safe when storing metals at home.
A good thing to think is: if someone ransacked your place, what would they not turn over, pull out, look in, or take?
Have a good day,
The Cyberius team.