If I have to leave the US I would have need to conceal my identity which means an extradition treaty is pointless. Why limit yourself?
I use cash for illicit transactions and tipping. So I pretty much always have cash
Most everything else goes on the credit card because it is normal purchases and bills and I get airline miles as an incentive. Plus credit card companies have the best option for fraud prevention, detection, and reaction. I don't allow location services on my phone unless the app is active and I don't really do social media except car forums.
Best I can do for the amount that I give a fùck. Which is minimal.