If i drove a cab,i’d definitely carry.
I dont drive a cab but I definitely carry all the time.
Ditto that, but I'd also equip the cab with a floor to rooftop polycarbonate sheet between passenger and driver sections. Small window openable only from the drivers area to pass payment/credit cards/receipts back and forth.
"Carrying" alone isn't much good when the potential perpetrator is behind you and you have to keep your eyes on the road ahead.
And pursuing the criminal is probably illegal in many states WITH CCW (not a point of view I agree with, but that's the reality of it).