Comfort and Convenience
A preferred seating position varies from person to person because torso length and leg proportions differ, so one fixed posture does not suit every driver.
Safety and Driver Assistance
Knowing where the wiper and light switches are before leaving avoids distraction during sudden rain or darkness, when attention should stay outside the car.
Multimedia and Connectivity
Having a dedicated place to set a phone prevents it from sliding under the seat, and if a connection is available it keeps calls and music within easy reach.