Let me give you a real-world example. China has a tight control over not only the currency exchange rate, but also the very action of exchanging or even withdra

Let me give you a real-world example. China has a tight control over not only the currency exchange rate, but also the very action of exchanging or even withdrawing foreign currencies. The current policy is that you can only send/receive $50k USD per year per person regardless of the channels, even if they are completely legitimate via wire transfers. This is obviously not enough for a student who goes to the US for college. And this creates a huge difficulty for the families. Bitcoin is one of the main ways to break this barrier even though it is deemed "illegal" in China. You can say this is a "crime", but the legality is actually a very subjective thing depending how you look at it.