Good perspective on the subject. I can speak from experience (as a matter of fact I'll do a post on what price inflation looks like in Argentina), inflation sucks if you're on the wrong side of the equation. As far as cryptos go, I understand that BTC has a limited supply which is probably going to take its value in USD to the moon, more than it already has, but on the other hand, I feel there's a move in play to control specific areas of the internet, hence the Neutrality laws they're trying to pass, as well as the recent ransomware attacks, all aimed at making bitcoin and crypto currencies look 'unsafe', therefore creating the idea that holding USD or putting your currency into your checking account (not money, you can't deposit gold or silver into a checking account, as far as I know) is 'safe', and if it's in the United States, it's even safer.
Another worry is the idea of the internet either going down in any number of ways, which as you clearly state, could leave crypto wallets completely unavailable for who knows how long.
To summarize, I agree that holding some of both may be prudent, considering the state of the markets right now.