I used to be more of a cash type. I plan to return to that once my finances regain their former traction. Hard currency talks and B.S. walks, as others have already mentioned. Got a hell of a deal on a used truck not long ago by this motto, and it’s been a gem for almost four years now. The OP called it “walking around money”. I wouldn’t typically walk around with that much of it, but to each their own. What I find interesting is that I heard it called “strutting money”, by my grandfather’s generation.
As of last few years, I find myself leaning harder and harder on a checking account debit card. Just the other day, I listened to a general financial advise guy’s show on the AM radio, and he went off about his total dislike of debit cards for a host of reasons I would never have considered. Largely, that if you get hacked or whacked by someone using them, or stealing your identity to use them, it’s much harder or less likely for the bank to re-imburse you for your losses. Whereas with a CREDIT card, the re-imbursement or correction is practically an instant guaranteed. Has me second thinking my extensive use of the debit card. Especially with WiFi and anything purchased online (which I don’t much of at all anyway), but in all uses too. It was a bit of a wake up call.