Our airline now say taxying is a 'critical phase of flight' i.e. sterile cockpit applies - no non operational chat.
Would love to hear the cockpit tapes from AF at Sofia see how what the chat was prior to take off.............
Distractions have been proven to be one of the biggest factors in accidents/incidents.
Eg Spanair MAD jumpseating cc in cockpit and non operational chat prior to take off. Not necessarily the cause but a fact. No flaps and the rest is history.