Comfort and Convenience
Cabin temperature is a preference people rarely agree on. Body size, clothing and whether someone has just walked in from the cold all shape what feels right, so the setting one passenger chooses seldom suits everyone.
Safety and Driver Assistance
It costs little to spend the first few minutes in an unfamiliar car stationary, finding the lights, mirrors, heater controls and the hazard switch. Learning them while parked means they are not being searched for later.
Multimedia and Connectivity
Charging is the need that shows up most on long days, when navigation runs for hours and the battery drops steadily. Where a power source is available, keeping a suitable cable in the car saves improvising.