Cash is person to person transaction which the government can easily identify where all your money goes just for asking and reviewing all your movements, unlike in bitcoin?
Don't follow you at all here. How can the government easily identify when and where I pay for something in cash? Once I have withdrawn the cash from the bank, the paper trail ends. How does the government know if I give it to my friend to pay for some pizza or if I give it to a drug dealer in the next neighborhood?
If I had to guess, they're talking about surveillance like CCTV cameras. Because you have to physically go somewhere to spend cash, your movements could be monitored. I guess it's a valid point in
some places, where CCTV can be quite pervasive. But I think people overestimate the potential sometimes. Too many shows on TV where they always catch the bad guy by enhancing some blurry footage from a camera in a way that wouldn't actually be possible in the real world, heh.