[ToucanLoucan]

I mean crypto itself is only as anonymous as your most public link to your wallet too, which is one of the reasons I dislike it despite seeing the appeal of the idea. People like to compare it to cash, but the fact is every hundred dollar bill in circulation doesn't have a list of people's unique if anonymized handles who's touched it since it was printed. And that gets doubly problematic if you use... really any of the wallet managers out there, who now know every wallet address associated with not only your personal info, but likely bank info.

[fruitworks]

There are techniques for anonyminity in cryptocurrency such as zero-knowedge proofs implemented in cryptocurrencies like monero and zcash (and many others)

These techniques vary in their effectiveness and efficiency. If you look at a monero transaction for example it uses something like 10x the bandwidth and CPU power to verify vs Bitcoin (which is already an inefficient network)

Some banknotes do have identifying markers, but I think you are right. Cash-like privacy should be the goal with all crypto