Comfort and Convenience
Cabin temperature is the preference that divides travellers fastest: what one person calls pleasant, another finds stuffy or draughty. Build, clothing and where someone sits relative to vents and glass all feed into that.
Safety and Driver Assistance
A few minutes stationary spent locating lights, wipers, mirrors and hazard switches means none of it has to be worked out later. Preparation of that kind is simply easier with the car parked than in moving traffic.
Multimedia and Connectivity
Battery level is the usual worry on a long day out, since phones handle navigation and messages throughout. If a charging option is available, whichever form it takes, passengers can top up en route instead of rationing screen time.