Comfort and Convenience
On a morning school run, one occupant may want cooler air while another prefers it warmer, because people notice heat and drafts differently.
Safety and Driver Assistance
Before a night pickup at a station, knowing where the hazard switch and cabin light are means you are not searching for them while someone waits outside.
Multimedia and Connectivity
When a parent rings during the school wait, taking that call is separate from playing music, and it only applies if call audio can be used.