Both are equally stupid, and you have to exchange them to buy most of the things you might need.
Most goods today are denominated in fiat, so stablecoins are a better fit than gold.
And at this stage, stablecoins are great for easy money movement (rather than holding in crypto). I actually think most people won't even know that crypto rails have been used to move their money, with stablecoins like tcp/ip for money movement.