Yes I just about always carry cash - pretty typically since you can pull cash at many stores now for free, if I do not have $100 in my wallet I take cash back whenever shopping for other things. Also very typically I pay for things at small stores in cash because I pay enough damn taxes for both of us - local convenience store, getting a haircut, restaurants/bars (I always tip cash no matter what), tackle shop, gun shop, all those sorts of places.
Not sure what this pertains to but I'm not too worried about getting robbed, not just because where I live but generally the $100 I've got on my person I don't care - brandish a weapon and you can have it no resistance is worth it for me over that. Was selling a boat last year and I did specifically arm up on the way out the door to meet the guy, thinking I'd be carrying around 5 figures on my way to the bank - for that I'm prepared to resist, but that's a whole lot different.