Schiff is, of course, 100% correct. But so are you in terms of reasons someone still might look to cryptocurrency. Arguably, gold and silver are not volatile -- as I understand it, they traditionally hold value in terms of what they can buy, but seem to fluctuate in value because the fiat dollar is changing in value. If they rocket upwards, it's because the fiat system is rapidly losing value.

Gold and silver (and other metals) can be used by industry, so there is an inherent value that fiat money and cryptocurrency can never match. The latter rely on faith that someone will accept the currency in exchange for goods and services. This is why crypto will be a total crapshoot as we figure out which options people will reliably accept. But it seems clear that we're moving into a digital era and that people don't want centralized powers running the money system, where they can deflate the value of that money (i.e., steal from everyone who has any of that money) on a whim.