I think the point is more profound than that — for all the reasons that local currencies are useful (and the flowering of many cryptocurrencies has happened), o

I think the point is more profound than that — for all the reasons that local currencies are useful (and the flowering of many cryptocurrencies has happened), one’s local national currency is itself an incredibly useful thing to have. If your friend is in the same country or currency zone as you, which statistically they are very likely to be, a national stablecoin is more useful than one that drifts. (Conversely, for international remittances, an international basket stablecoin might indeed be a useful thing to have!)