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 is needed to preserve your value
over the time of crisis, precisely what OROBTC said. It will not be of much use
during 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.