I know people out there who have invested a lot in gold under the belief that in the event of like complete societal collapse or hyperinflation, they could use it for purchasing.
I have the hunch it's a scam, but I haven't learned enough monetary theory, business, or economics to understand why.
It would probably already be stolen by that point xD
Though, as I said, gold is a pretty universal currency, so if you manage to smuggle it out you can use it almost anywhere. Unlike some obscure national currency or the like