Earlier quoted context omitted.
maybe for developed nations - that doesn't represent much of the world
So high tech crypto is the solution to making trading with the developing world easier? Aren’t these the same sorts of places which struggle to have reliable electricity, let alone internet access?
And of course, many people here on Hacker News have a rather privileged Western notion, that you can, in fact, legally send money just wherever. That's not universal. Capital controls restrict that heavily in many places, such that it can be illegal for people to send money out of the country. So the formal banking system is no help there.
Assuming that you can trade Bitcoin on both ends, it really is often the simplest way to simply move money between people outside the formal banking system, especially internationally. For better and worse, it cuts right through all of the red tape: no wire transfer declarations, no capital control declarations, no government-mandated exchange rates, no tax reporting, no KYC requirements, no ID requirements.