Comfort and Convenience
Where a driver likes to sit relative to the wheel varies with height, arm length and habit. Someone who prefers an upright posture judges the right distance differently from a driver who likes to reach out.
Safety and Driver Assistance
Learning where the lights, wipers, hazard switch and demister live before setting off means less searching later, so a first drive can be spent reading the road rather than hunting across the cabin.
Multimedia and Connectivity
Keeping a phone charged on a long errand run is a separate matter from playing music or taking a call. Where charging is provided, it usually depends on a cable or pad rather than the audio link.