It's still legal to use cash to pay for things. Let's not assume that we've lost that ability until it happens. It's an important privacy we shouldn't give up easily.
I'm not sure that a US business can take out $200k from the bank, bring it across the border into Canada undeclared, and give it to a random person without any kind of paperwork or tracking..
Maybe I'm wrong! I'd just be pretty surprised about it..
