Company policy is that only the captain taxis the jet. Most captains on the airbus, let the F/Os taxi. Everyone is typed in the plane, you have to demonstrate the ability to taxi.
I'd be
very surprised if this is true. The A320 transmits almost anything to MX, and if the F/O gets caught taxiing the airplane against company policy, then (s)he's have to do an interesting carpet dance.
I am typed in the A320 and was
not required to demonstrate my taxi (in)ability on my checkride. I know that there are slight difference between east and west crews but letting the F/O taxi?