There is truth in what you say. But not only investing in gold, but all types of investments must know how to invest properly if you don't want to fail or lose. Gold investment is a real investment, the wrong way to invest can be a loss, let alone investing in crypto.
There are lots of cryptocurrency in the market that claims to be backed by gold, but not all of them are really backed with gold. So far after my research I have discovered that it is just a few of them that are truly backed by Gold, such as the PAX Gold. So, anyone that is buying investments that are backed by precious metals has to be very careful and properly research the coins they are investing in.
You have to know whether those assets are truly what they are claiming to be and whether they really have proof to show for it that they are backed by such. That’s it for me.
Some can even manage to publish their gold certificates as a proof but they still ended up bad. For the OP, if you really want to invest in gold, but you have big amount of money, why not buy small gold jewelries? At least, you can say, you have tangible asset and no one can get it from you unless someone broke your home. Slowly buying gold jewelries for me is better than these projects claiming to be backed-up by gold or any precious metal.