Indeed, there is something very suspicious in all this. Governments are moving, or have moved to instigate laws to tax profits from cryptos ( thats not the suspicious part) to make it look like they are concerned.

The part about doing away with cash is one of the main pushes I think. The calming words that 'everything is accounted for on the chain' will be used to sell the 'better than cash' system. The cashless society you keep hearing about (repetition anyone?). You will have to register your account with your details though, to stop illegal activities or terrorism or whatever flavour of the month they want to peddle.

The other thing that can probably be solved which previously seemed to be backing them into a corner, is derivatives. This may be an ideal system to offload those into a sea of crypto currencies to wash their hands of them and put the risk if any, onto investors and spread the pain.

I agree that when cash goes, the prison door closes. Any tracked currency from then on will remove what little privacy you had left. They will sell this as the ultimate check-mate to those naughty terrorists of course. While they also sell your details, your buying habits, your advertising profile, your saving and earning potential etc. to anyone who wants to pay them for it.

We are and will be ultimately, just another commodity.