Well then, every 121 airline in the US is doing it wrong! FOs fly every other leg from the right seat and stay in the right seat until they upgrade. Very few planes have tillers on the right and regardless of which seat you are in rolling down the runway accelerating is no place to be on the tiller anyway!
I understand that in the corporate world there is a lot of seat swapping and that is fine if that is the custom, but shouldn't your newbie be able to take control at anytime, say if you became incapaticipated after throttling up?
See how silly this sounds:
Gee, sorry boss, but I couldn't save the situation when Fred keeled over, as he was in the left seat when it happened. Sorry about your $50M jet but it wouldn't have happened if I was in the left seat. I just don't know how to fly from the right.