Turns out it doesn't matter if the currency is trustless if you still have to trust your counterparty anyhow. In fact it's worse in most cases, since you can't seek recourse from trusted financial intermediaries (chargeback, etc).

For 99.9% of daily cash-equivalent transactions it is significantly clunkier than the new "FinTech" solutions: Venmo, CashApp, Zelle, etc. For purchases, credit cards generally actually offer a kickback so it's not even a contest.

El Salvador gave everyone $30 of free bitcoin. What happened afterward speaks volumes.