> Show me a regulator who is able to do any of those things with cash transfers of USD?
Holding and/or transporting large amounts of cash is extremely fraught, especially across borders. US legal authorities regularly seize cash without due process and without meaningful judicial recourse. Most US banknotes are contaminated with cocaine, so it's prima facie laughable that a narcotic-detection-dog alert on a pile of money is seen as sufficient evidence that the money was obtained via the drug trade (thus allowing its seizure) -- yet this is a very common tactic.
The ability to transact in cash is meaningless if governments (and entities authorised by governments, look up "sewer service" or "gutter service") can seize cash without even a pretence of due process.
Holding and/or transporting large amounts of cash is extremely fraught, especially across borders. US legal authorities regularly seize cash without due process and without meaningful judicial recourse. Most US banknotes are contaminated with cocaine, so it's prima facie laughable that a narcotic-detection-dog alert on a pile of money is seen as sufficient evidence that the money was obtained via the drug trade (thus allowing its seizure) -- yet this is a very common tactic.
The ability to transact in cash is meaningless if governments (and entities authorised by governments, look up "sewer service" or "gutter service") can seize cash without even a pretence of due process.