Comfort and Convenience
Preferred cabin temperature is a good example of a personal setting: the same air feels different to a driver in the sun and a passenger in shade, so agreement usually beats a single fixed choice.
Safety and Driver Assistance
Learning where the essentials sit is easiest while stationary. Adjusting mirrors, seat and headrest at the kerb, and locating hazard lights and demisting, means fewer unfamiliar decisions later when traffic or weather changes.
Multimedia and Connectivity
A phone used for navigation drains steadily, so charging on the move is the practical concern on a long drive. Where a suitable power outlet or cable is available, the route stays live without rationing battery.