Comfort and Convenience
Seating position is one such preference: some people like to sit high with a clear view forward, others lower and further back. Body proportions and driving habits differ, so no single arrangement suits everyone.
Safety and Driver Assistance
Spending a few minutes with the wipers, lights and mirrors while parked means you are not searching for them later. Preparation like this belongs to the routine of getting to know any unfamiliar car.
Multimedia and Connectivity
Keeping a phone charged on longer trips is a common need, and it is separate from whether calls or music are routed through the car. If a charging point is available, its position matters.