Some have made it through their wealth life through gold, but we must not deny the fact that this is only a centralized physical asset, now that bitcoin arrives, it is targeted on everyone, bitcoin is never like gold which was centralized, bitcoin is a decentralized digital currency and anyone can make investment in it at any time and make profit without having to hold for long, a good example are the traders, you can also work and get paid in bitcoin, just as you have seen it being a digital currency unlike gold which is just an asset but but people were not paid in it.
I don't think gold is completely centralized because it is scattered across the entire surface of our earth and only those who can discover and mine it can own it, no government can create it like fiat. But no one knows how much gold our earth has, there may be a lot of gold that we humans have not discovered yet.
Talking about how to make money from gold, we also have a forex market and you can also profit from trading the XAU/USD pair. It can generate even greater profits when compared to the BTC/USD trading pair. But holding physical gold will not have the same potential as holding bitcoin. Simply because gold has achieved its achievements and reached its limit while bitcoin still has a lot of potential thanks to its outstanding properties.