Comfort and Convenience
Seating preferences differ because people vary in height, leg length and how upright they like to sit. A position that suits one driver can leave another reaching for the wheel or peering over it.
Safety and Driver Assistance
Knowing where the wiper, lighting and demister controls sit before setting off saves searching for them later. Familiarity of that kind is easiest to build while parked, with no traffic competing for attention.
Multimedia and Connectivity
A phone may be wanted for calls, for music or simply for topping up its battery, and those are separate needs. Where wired and wireless options both exist, the better choice often depends on journey length.