Comfort and Convenience
How far back a driver likes to sit is personal: torso length, arm reach and the habit of glancing over a shoulder in tight car parks all pull the preference in different directions.
Safety and Driver Assistance
Learning where the wipers, lights, hazard switch and demister sit while parked means fewer moments spent hunting for them later. Errand driving involves frequent short stops, so settling these routines in advance leaves less to work out in motion.
Multimedia and Connectivity
A phone that starts an errand run half-charged is the common problem; if a charging point is available, using it keeps navigation running without turning the same cable into the music or call solution.