Yup. When fiat fails, another alternative would rise and people will start using it. It might start very slow but sooner or later I think we will meet a balanced demand and supply which cause Bitcoin or other crypto to be more stable, but of course this also depends on whether the fist system is healthy or not. If anybody use Bitcoin to judge a price of a thing then there's no problem at all with volatility. Problem is, that's almost impossible.
Stablecoins offer much better value for money as currency and payment option than any of the currently existing crypto currencies. People might not like to read this, but this is the reality.
The only downside of the most popular stablecoins is that they operate on easy to cripple networks, being Bitcoin and Ethereum. By the time we're going through the next mania even these stablecoins will turn into bad currencies.
Unless there is a way to shift USDT to LN and have the whole process of transacting and settlement be instant, there is little that any crypto currency will bring to the table as being a useful local fiat alternative.
