Comfort and Convenience
Seating preferences vary because bodies do: height, leg length and back shape all change where support feels right. A position that suits one driver can feel awkward to the next.
Safety and Driver Assistance
Knowing where the lights, wipers and demister controls sit before setting off leaves one less thing to work out when weather or traffic changes. A few minutes parked usually covers it.
Multimedia and Connectivity
Charging a phone, taking calls and playing music are separate needs. A journey longer than the battery lasts makes charging the priority, whatever listening arrangements happen to be available on board.