Which is why it's under attack. Here in Australia the government considered (though later dropped) a bill criminalising cash transactions of over AUD$10,000 between businesses and an individual.

Covid was also used in government PR to try and sell the idea of a cashless society.

It looks that way until you try to put a lot of it in a bank or turn it into "big people money" aka capital. Roughly at that point governments would like to have some idea of who you are.