After all these years, all scam stories apart, what crypto allow its users to do that they would not be able to do otherwise with less resources? Really I don’t know, and I admit I never wanted to dig the topic as there are many other topic I will never have the time to learn and yet doesn’t seem to have such an issue of what is at best a tremendous noise/signal ratio.
Add some zeroes to those numbers and now it is.
(especially if the transaction fees remain in the 10s)
International money transfers, for instance. The traditional banking system was always slow and expensive, and, on top of that, countries cut each other out due to geopolitical reasons. Many third-world countries have a decent crypto adoption, you can send someone money in a matter of minutes (I do).
For a sovereign state this is a feature, not a bug. If you think that countries will take sending of funds to embargoed countries lying down you are sorely mistaken.
And if you have a mixer or private coin that isn't under sanction, it is only a matter of time as determined by the US gov's assessment of the risk of it being widely adopted.
Some very big sums require approval and are delayed. But guess what - it's not a technical limitation but a legal one. It not like some TCP packet can transmit wire transfer of 1000 dollars and unable to do so for 50000 dollars. And we as society do want to control large sum transfers, unless we want to end up like my home country, with funds funneled with close to no control to offshores.
Sure, if a person want to skirt the law and transfer millions without control then current token systems are perfect for him.
To any country of your choosing? I doubt that.
Until crypto becomes at least as easy to get set up with and use as dealing with a bank, Western Union, or online banking, it'll remain niche.