Comfort and Convenience
Preferred cabin temperature is a good example: some people settle at a cooler setting, others warmer, because clothing, circulation and journey length all differ. Knowing where that adjustment sits keeps the change quick and undistracting.
Safety and Driver Assistance
Spending a few minutes with wipers, lights and mirrors before setting off means those actions are already rehearsed. Preparation of that kind helps keep attention on the road rather than on hunting for a switch.
Multimedia and Connectivity
A phone running low mid-journey is a common annoyance, so it is worth knowing in advance whether charging is available and by which method. Calls and music are separate needs, each with its own settings.