Comfort and Convenience
Cabin temperature is a personal matter. Someone who feels the cold often wants warm air low down near the feet, while another occupant prefers cooler air higher up, so settings get negotiated.
Safety and Driver Assistance
Setting the seat, mirrors and steering column while parked is simpler than reaching for them mid-journey, when attention belongs on the road. Locating the hazard switch beforehand follows the same logic.
Multimedia and Connectivity
Taking a call while driving is a different requirement from listening to music. Hands-free speech needs a microphone and speaker path, so it is worth working out how any pairing behaves beforehand.