Comfort and Convenience
Cabin temperature is a good example of a preference with no single right answer. Passengers arrive dressed differently and sit in different parts of the car, so agreeing on a setting is part of travelling together.
Safety and Driver Assistance
It is worth a few minutes in a stationary car to locate the hazard lights, demister and headlight switch. Doing that before setting off means the first use is not happening in unfamiliar conditions.
Multimedia and Connectivity
Phone battery is the usual long-trip concern, since navigation runs for hours. Where a charging point is available on board, keeping a suitable cable packed is what turns that possibility into a working arrangement.