Comfort and Convenience
Cabin temperature is the clearest example: what one person calls pleasant, another finds too cool. Clothing, where someone is sitting and simple personal habit all pull the preference in different directions.
Safety and Driver Assistance
A pause before setting off is a good moment to locate the essentials, such as lights, mirrors and demisting, rather than looking for them in moving traffic. Preparation is simply easier while the car is stationary.
Multimedia and Connectivity
Keeping a phone charged across a long trip is its own concern, separate from calls or music. Where a charging point is fitted and reachable from the seats, passengers can top up without handing devices forward.