Comfort and Convenience
Seating position is the clearest example: height, build and driving habits lead one person to sit upright and close, another further back and lower. Preference here is individual rather than a matter of right and wrong.
Safety and Driver Assistance
Spending a few minutes before setting off to locate lights, wipers, demisters and the hazard switch is sensible preparation. Doing so while stationary means the first use of an unfamiliar control is not happening mid-journey.
Multimedia and Connectivity
Keeping a phone charged over a long drive is a practical need in its own right, separate from listening to music or handling calls. Where a charging option exists, knowing its location makes planning simpler.