Comfort and Convenience
Preferred cabin temperature varies from person to person, so separate adjustments for different seating areas can prevent repeated changes during a trip if they are present.
Safety and Driver Assistance
Practicing the location of controls such as the hazard switch or defroster before leaving means a driver can respond to situations without searching the dashboard.
Multimedia and Connectivity
Passengers may want different audio than the driver, and a headphone option can allow music or calls without competing with cabin sounds, depending on what is supported.