Tangible items can have utility in the real world, where cryptocurrencies can never be anything more than numbers on a display.
Gold can be used in electronics, and I get that people are mad that currencies are just something we all mutually agree have value, but generally speaking powerful governments back those up. Cryptocurrency is backed up by people promising it’s totally gonna be a real currency any second now. Please ignore that crypto can wildly fluctuate in value which generally a horrible thing for a currency to do.