Frankly, the enthusiasm some wealthy Westerners have for dumping newly printed gambling tokens on some of the world's poorest people is part of the cause of the anti-crypto backlash the OP describes.
All it takes is one single "discovery" of a massive cache of gold. That cache is then controlled by the government who's land it is found on. It is one of the most heavily manipulated forms of 'money' on the planet.
It might be good enough for you, but as the person who started this thread, I'm clearly in the camp of less government control over my funds... No, thanks.
It's like concluding that as poor Vietnamese people already smoke (the men generally do...) in lieu of better forms of entertainment, what would really improve their lives is some crystal meth.
The population has an instinctive distrust for centralised authorities for the most part. Although very patriotic, they wouldn't place their life's worth of wealth in any of the several government controlled banks. Nor to the more independent or even foreign banks either. And it's good that way, Vietnam has a thriving crypto scene and may very well be one of top adopters of crypto. For what business use case they don't know quite yet, but it will come.
Power structures are ending cash in various places for various reasons, and we need some even kind of private digital replacement to cash.
So, like 8 years salary? That's significantly better than in the USA, I don't think it's making the point that you think it is.
Amazingly, they also have smart phones and the government has put 4G towers through the whole country and in the most remote places.
That's our usecase right there.