Comfort and Convenience
Cabin temperature is rarely agreed on. People arrive dressed differently, sit in different amounts of sunlight and simply differ in what feels pleasant, so a setting one passenger calls right can feel wrong beside them.
Safety and Driver Assistance
A few unhurried minutes before setting off, with mirrors set, seating position settled and lights and demisting located, leaves fewer things to work out later, when passengers are talking and the road needs attention.
Multimedia and Connectivity
Battery level decides a lot on a longer trip, since a phone often carries the route and the messages. Where charging is available on board, it helps to agree early who plugs in, rather than mid-journey.