This girl doesn't understands anything or has a well defined agenda, or both things...
Anyway I always thought what value could have gold or silver in a total collapse scenario, lets say "Patriots" book, the road, Mad max or something like that.
Precious metals are good to represent wealth but they don't offer much utility, so in a pretty shitty situation I'll rather have a candle than a gold chip, having useful objects to trade I think would be better, at least short term in a SHTF situation.