Wouldn't gold's physical nature be a real weakness because it could cause a "centralization in vaults" problem? How much gold can an individual legally own and store in your homes in your country?
Then there is Bitcoin. It is virtual, and it opens a world of private key ownership, and therefore, true sovereign ownership of private property which governments cannot control.
to be honest I as a woman prefers gold as a tool to invest, because the risk of experiencing losses is already counted, even though I also save some of my money in bitcoin, but I save more of my money in gold, because I can use it for jewelry.