Comfort and Convenience
Cabin temperature is one of the clearest splits between occupants: what one person finds pleasant, another finds stuffy. Clothing, circulation and where someone sits relative to the vents all play a part.
Safety and Driver Assistance
Drivers moving into an unfamiliar car often reach for controls from memory of the previous one. Checking the actual layout while stationary removes that guesswork before the first busy junction.
Multimedia and Connectivity
Music and phone calls ask different things of a car. Music needs a stable source that keeps playing, whereas a call also depends on a microphone position that lets the other person hear clearly.