Comfort and Convenience
Preferred cabin temperature varies widely. One occupant may want steady warmth while another prefers cooler air on the face, and clothing, time of day and personal tolerance all push that choice in different directions.
Safety and Driver Assistance
A driver stepping into an unfamiliar cabin benefits from a few unhurried minutes: mirrors set, seat settled, indicator and light stalks identified by feel. Preparation of this kind belongs before the journey, not during it.
Multimedia and Connectivity
Taking a call without handling the phone is an everyday expectation, and it depends on the car's own audio and microphone rather than on playback or charging. If such a function exists, learning its answer and end commands is sensible.