Comfort and Convenience
On a short trip to the shops, some people like a cooler cabin while others prefer warmer air, because the same temperature feels different from person to person. Clothing and whether someone has just come indoors often explain that difference.
Safety and Driver Assistance
Before an early appointment, a parked moment spent locating the indicators, horn, and demister means those controls are already known when the journey starts. It is ordinary preparation, done while the car is still.
Multimedia and Connectivity
During a wait outside a clinic, keeping a phone charged for later messages is a common need, and a power socket can help if one is present.