Comfort and Convenience
Preferred cabin temperature varies widely: one person is comfortable where another reaches for a jacket. Differences in clothing, how airflow reaches each seat and personal habit mean passengers rarely agree on one setting.
Safety and Driver Assistance
A few minutes spent working through the gear selector, parking brake and warning lamps builds a mental map. That preparation is most useful in a vehicle someone drives only occasionally.
Multimedia and Connectivity
Taking a call without handling the phone is the everyday reason people look for hands-free functions. Where such a feature exists, it keeps conversation separate from music playback and charging.