A private key can have infinite public keys attached to it, and that's literally best practice as of today in every major wallet software, and has been for years now.
Sure if you for some reason don't use this strategy and only use one public key you may get tracked or blacklisted by centralized KYC exchanges, should be added, and never by the blockchain itself.
Native on chain payments and the lightning network will always accept your transaction, no matter what because none of those has any blacklisting features.
If a bank gets robbed and cash gets stolen they could easily blacklist the serial numbers of the stolen bills too and you risk getting arrested if you for some reason comes over one of those bills and some store recognize the serial number. Same with gold bars, they typically have a mark on them, so you gotta melt it and reshape before you can use it.
You're demanding a level of privacy and fungability no existing medium of exchange will offer you just like that unless you're aware of the flaws and avoid taking stupid risks, which btw is how criminals get caught. If this is such a major concern for you, then why don't you just use Monero instead of Bitcoin?
A private key can have infinite public keys attached to it, and that's literally best practice as of today in every major wallet software, and has been for years now.
Sure if you for some reason don't use this strategy and only use one public key you may get tracked or blacklisted by centralized KYC exchanges, should be added, and never by the blockchain itself.
Native on chain payments and the lightning network will always accept your transaction, no matter what because none of those has any blacklisting features.
If a bank gets robbed and cash gets stolen they could easily blacklist the serial numbers of the stolen bills too and you risk getting arrested if you for some reason comes over one of those bills and some store recognize the serial number. Same with gold bars, they typically have a mark on them, so you gotta melt it and reshape before you can use it.
You're demanding a level of privacy and fungability no existing medium of exchange will offer you just like that unless you're aware of the flaws and avoid taking stupid risks, which btw is how criminals get caught. If this is such a major concern for you, then why don't you just use Monero instead of Bitcoin?