As far as i know the second tiller on a 737 for example is an option that is rather expensive, nearly nobody orders it. I thing KLM does, but i might be wrong.
On the A320, or probably all airbii it seems to be the standard equipment and a single tiller installation is the option. Which ties in with the OEM SOPs from airbus in which the FO does the taxying if he is pilot flying on that sector. Of course, if the guidance system into the parking stand is left hand only calibrated there has to be a transfer of control prior to taxying into that stand.
Working in an airline that works its way out of boeings into airbii we used to have company SOPs in which only the captain was allowed to taxi, except in case of role reversal for training purposes. Now that we adopt the full airbus SOPs (including the darn FMA callouts and those longwinded checklists) all FOs have to go through some taxi training in the simulator and two flights with a trainer before they will be allowed to taxi an aircraft, set take off power themselves and do the whole taxi in.