There is an argument that, in the future any Alt coin should have the ability to be private / anonymous anyway.
In the beginning Bitcoin was used in the Dark web as in Silk Road transactions, but now the Govt has worked out how to use "Pattern" mathematics to be able to trace addresses. So Bitcoin is no longer is used as much in the Dark web. Monero has taken over this area very because it is very very difficult to trace and therefore the drug lords on the dark web are mostly using it for transactions.
One concern is if Govts will even allow any Alt coin to be anonymous because it is not in there favor. They want t be able to track every cent we have as long as its not their money.
However, as I see it, this creates a problem for the banks too because the financial world is full of crooks worse than the underworld and that means it is getting harder for then to hide their own money so that the Govt does not see it.
I mean if the shit hit and the economy was about to crash and you knew about it, where could you put/store your money so that the banks/Govt could not get their hands on it. As long as any form of money is traceable then they can get it it they really wanted. No one ever beats the state