It's a shame our country (and the world) has so many dishonest people in it. And it hurts all the good people as the govmt wants to know everything about your personal life including the cash you spend.
The only reason govmt wants our info is to get out money, now or in the future. Why do we have to report things that are totally non taxable... same reason.
I could argue for one to be anonymous, as much as can. Keep things out of your personal name and keep a lot profile. And, hard to fight city hall (govt), as they use your money to fight you.
I like cash.