Comfort and Convenience
Seating position is personal: height, reach and posture differ, so two drivers rarely choose the same arrangement. Where a car is shared, each person tends to have their own preference to return to.
Safety and Driver Assistance
Learning where the basic controls sit before moving is simple preparation. Lights, wipers, hazards and the horn are easier to use when they have been found once in a stationary car rather than mid-journey.
Multimedia and Connectivity
Keeping a phone charged on a long drive is its own need, separate from calls or music. If a suitable power outlet or cable is available, the phone stays usable at the destination.