Comfort and Convenience
Seating position is a personal matter: some drivers prefer sitting high for a clear view forward, others lower and more reclined. Body proportions, commuting distance and long-held habits all push that preference in different directions.
Safety and Driver Assistance
Learning where the wipers, lights and demister controls sit before setting off means less hunting for them when the weather changes mid-route. A few minutes stationary is an easier way to build that familiarity than doing it in traffic.
Multimedia and Connectivity
A phone that starts the commute half-charged is a common annoyance, so where charging is available on board it matters chiefly for keeping the device usable on arrival, rather than for calls or audio.