Future generations will be digitally-native. So physical items would become a thing of the past. It's so much better to carry "Digital Gold" on a digital wallet, than carrying a bulk of physical gold bars and coins with you. Bitcoin is portable, so you can store millions of dollars within the smallest medium you can imagine. All without bringing unwanted attention.
You can carry BTC with you while traveling, but you can't do the same with Gold. Portability is one of Bitcoin's greatest features. It's the future, anyways (despite naysayers' claims). Who knows? Maybe it Bitcoin will surpass Gold's market cap. One can only hope...
In the past, there was no Internet hence people must store their wealth in physical properties like gold, silver, cash and the others. In modern life, there is globally existence of the Internet and people can store their wealth in digital forms like fiat currency in bank accounts (surely whether it is safe or dangerous, it's another story for consideration), and with growth of blockchain technology and industry that is led by Bitcoin blockchain, people globally have a new magnificient way of wealth storage, on blockchain, in bitcoin.
They must know vital points of owning bitcoins and storing them in open source, non custodial wallets as well as necessary steps of wallet download, verification, creation, backkup, backup test, recovery in order to keep their bitcoin safely.
The bullish case for Bitcoin can help people who still don't have knowledge about Bitcoin or have doubts about it, to be enlightened more.