"If you don't know why it's worth having some gold, then you have not studied any of the copius histories on the collapses of various fiat currencies."
There are also many numerous examples of cultures collasping that used gold, salt, and chocolate as currency. Any currency only has value because people believe it has value.
Show me a few examples of societies suffering an economic collapse that used gold or gold-backed currency.
Should be easy. I'll be here, waiting.