Comfort and Convenience
Seating position is a personal preference: some drivers want to sit high for a clear view of kerbs and bollards, others prefer sitting low. Body proportions and habit explain most of that difference.
Safety and Driver Assistance
Before setting off on an errand run, it is worth locating lights, wipers and mirror controls while parked. Learning them calmly beforehand means less searching later, when attention belongs on the road.
Multimedia and Connectivity
Keeping a phone charged matters on a day of several stops, since navigation drains a battery quickly. If a charging point is available, using it during driving keeps the phone ready between errands.