Comfort and Convenience
Cabin temperature preferences differ because some people feel cold easily while others overheat, so having separate settings can suit different occupants on the same trip.
Safety and Driver Assistance
Checking mirror positions before moving off helps a driver stay aware of surrounding traffic during short hops between shops or school runs.
Multimedia and Connectivity
Listening to a familiar playlist on the way to the supermarket can make the drive more pleasant, provided the car has a way to play music from a phone.