Comfort and Convenience
Comfort preferences differ mainly because bodies differ: leg length, torso height and shoulder width all change where a person naturally sits. A position one driver finds relaxed can feel cramped or distant to another.
Safety and Driver Assistance
Learning where the lights, wipers and demister controls sit takes a minute while parked, and that minute is easier to spend then than when rain or dusk arrives mid-journey.
Multimedia and Connectivity
Charging, calls and music are separate needs. A phone can be powered without audio playing, and hands-free calling may work through one route while music arrives by another, depending on which functions are supported.