Wow... depositing more than $1k would trigger AML. That's incredible. In the US it's not uncommon for contractors to pull $10k cash at the end of a week to pay their workers. Some of that may be due to tax evasion or, just as likely, the workers being in the country illegally. I suppose this is another major reason cash is still "tolerated" in the US, because the casual labor market depends so heavily on undocumented workers. No one besides a few ultra-nationalists would really want to enforce such a thing, as it would drive up construction costs. And the nationalists are paranoid and stock up on cash and gold themselves.
Honestly, that system sounds a bit Orwellian. But also, does that mean that you have to pay a bank transfer fee every time you buy anything?