>I can't think of a place w/o mobile internet
There are dead zones all over the rural east coast. I can imagine other parts of the country are even worse.
So the argument is the cash existence is providing support for tax evasion?
Edit: To be clear, I am not against taxation as a concept. However I do have issue with the American tax code and the atrocities committed with its revenue, so I am not morally opposed to helping other members of the middle-class avoid paying taxes on all of their income.