Comfort and Convenience
Cabin temperature is a common point of disagreement, because people differ in build, clothing and how much direct sun or airflow reaches their seat. Agreeing a setting early usually saves repeated adjustment later.
Safety and Driver Assistance
Spending a few minutes with lights, wipers, mirrors and the parking brake before pulling away means fewer things to work out in motion. Preparation is easier when the car is stationary and unhurried.
Multimedia and Connectivity
Passengers often want to keep a phone charged on a long run. Where a suitable power outlet or cable is available, that is separate from whether calls route through the car or music plays over its speakers.