Comfort and Convenience
Cabin temperature is the classic point of disagreement: one person feels a draught where another feels stuffiness. Preferences vary with clothing, seating position and how long someone has been aboard, so shared journeys usually involve small negotiated adjustments.
Safety and Driver Assistance
A few minutes stationary is a sensible time to locate lights, wipers, mirrors and hazard switch. Doing that before setting off means the first unfamiliar moment on the road is not also a search.
Multimedia and Connectivity
Phone battery is the usual concern on longer trips, since navigation and music drain it quickly. Where a charging point is available, a passenger can keep a handset topped up so it remains usable for calls on arrival.