Comfort and Convenience
Seating position is a personal preference rather than one correct setting. Height, arm length and how far forward someone likes to sit all differ, which is why two drivers sharing a car rarely settle in the same place.
Safety and Driver Assistance
A minute before setting off is enough to locate the lights, wipers, hazard switch and mirror adjuster, and to set them as wanted. Doing this while stationary keeps such tasks off the list of things to sort out mid-journey.
Multimedia and Connectivity
Errand days drain a phone quickly, as maps and messages run between stops. Where in-car charging is available, it mainly buys reassurance: the phone that guided the outward trip is still usable for the journey home.