In my opinion Gold is more stable than bitcoin so bitcoin can`t be that stable so people can hold it in larger quantities or amounts. You can posses gold with you but you can`t posses bitcoin physically so for me GOLD will the world for next 1000 years.
With Bitcoin, you can store it in a hardware wallet and bring it around the world. It's portable and very convenient, not like gold. How do you bring your physical gold around the world without issues at national borders and police, customs at airpots and so on?
With gold, physically if you own more, you will have more problems to bring it around. It's too heavy, cumbersome and not conveniently portable like Bitcoin.
Gold is proven as worse investment asset than Bitcoin.
Bullish case for Bitcoin which is better than Gold.
https://casebitcoin.com/charts#roi_chart