Comfort and Convenience
Some drivers like to sit close to the wheel, near enough to reach everything without stretching; others prefer more space in front of them. Height, arm length and plain habit pull in different directions.
Safety and Driver Assistance
A short check while parked, running through the wiper stalk, the demister and the hazard switch, builds a mental map. Later you can reach by memory instead of searching mid-manoeuvre.
Multimedia and Connectivity
Hands-free calling matters mostly because it stops a conversation turning into a hunt for the phone. If the system supports it, answering and ending a call from the wheel keeps the routine brief.