I hate being that guy, but if you use any reserve currency(USD,Euro) I'd argue that its those currencies being used in active drug/illegal markets.
If I show up to a drug transaction anywhere with a hardware wallet, I think I'd get laughed out. Yet that's not the same with USD. Or in the extreme case, If I went to Libya to purchase a slave it is safe to say they take Euros.
If I show up to a drug transaction anywhere with a hardware wallet, I think I'd get laughed out. Yet that's not the same with USD. Or in the extreme case, If I went to Libya to purchase a slave it is safe to say they take Euros.