We need gold, perhaps other things, as a Store of Value.
Gold is hedge against government malfeasance but isn't a hedge against mad max failure of the government. In that scenario, gold becomes worthless and only food and ammo (and other supplies) are money. This has been backtested throughout all history by Armstrong.
If the government doesn't correct itself within about 2 - 3 years of the start of the crisis and it the crisis envelopes all possible safe havens globally (or the government blocks your escape), then gold is worthless to you.
Gold is a very, very risky store-of-value with very minimal utility.
That already minimal utility is declining drastically now that the technology has arrived to eliminate cash and control every nook and cranny of the globe with drones.
The Bible says they will throw their gold and silver into the streets. And that is precisely what is coming.
Gold might have some utility in a scenario where you can trade some coins (not bars) in exchange for some passage to a safer venue, or in exchange for some unregistered asset (such as an unregistered boat or plane if those things exist or perhaps a large box of ammo or guns). But it won't be something you can trade regularly for supplies. It will be something you will be lucky to trade seldom (and each trade you will be rolling the dice on your life). It is possible that there will be "resistance movement" that will trade gold for anonymous cryptocurrency, but these movements willl be infiltrated and you will risk life or imprisonment every time you risk a trade. You can have a runner do it for you, but TPTB can torture your runner and turn him against you. In short, gold will be a powder that hold and use only in desperation and sparingly. Thus it will be difficult to find anyone who will trade for it. It will have very low value in black markets, fractions of its "spot price". Liquidity will be horrendous.
All the reasons I can think why we desperately need reliable anonymous communications and currency.
the time of crisis, precisely what OROBTC said. It will not be of much use
the crisis. Some items mentioned by you might come in handy.
Saying that gold is "very very risky" is very very stupid if no explanation is given. Furthermore, you should really think about my thesis of portfolio allocation based on the least intercorrelation of the total loss risk of its components. In this context gold is very nice risk profile.