Though I'm extremely privileged now myself, I'm not so far removed that I have forgotten those days when down-to-the-penny accounting mattered. In the US at least, if you had the right education (which sadly many lack), you can live amazingly inexpensively by forgoing many societal conventions and expectations.
Your enhanced security is a box containing more money than you can carry. This box can (most of the times) only be opened with a key but this key is always with you. So whoever steals your force will just force you to open the box
You don't have to outrun the bear.
> and max-spend limits
Ok, now they've got your expensive phone and can spend up to your limit.
Because phones these days are mostly bricks when you steal them. Cash still works.
> Ok, now they've got your expensive phone and can spend up to your limit.
Haha, no, they can't. That's not how any of this works.
But listen, it doesn't matter. Carry cash if you want. I won't. And may the chips land where they may.