Comfort and Convenience
Cabin temperature divides people more than most settings. One passenger wants air moving constantly, another finds the same draught unwelcome, so whatever ventilation controls exist tend to be adjusted repeatedly on a shared journey.
Safety and Driver Assistance
Mirrors, seat and steering adjustment belong before the first gear selection rather than at the first junction. Preparation of this kind costs little and removes the need to improvise with the car already moving.
Multimedia and Connectivity
Taking a call on the move is a different demand from playing music: one arrives unpredictably and needs an answer, the other is chosen in advance. Any charging provision is separate again.