Comfort and Convenience
Seating position is a personal matter: how upright a driver sits, and how close to the wheel, depends on build, habit and the length of the trip. Two people sharing a car rarely settle on the same setting.
Safety and Driver Assistance
Learning where the essential controls sit before pulling away is simply sensible preparation. Mirrors, lights, heating and wipers are easier to find while stationary than while reading traffic, and a minute spent at the kerb covers most of it.
Multimedia and Connectivity
Battery level is the usual concern on a day of short hops: a phone running navigation drains steadily while each drive lasts only minutes. If a charging point is available on board, plugging in during the journey addresses that.