Comfort and Convenience
A preferred cabin temperature is rarely the same for two people. One passenger dresses for the destination and another for the car, so a setting that suits the driver can feel wrong beside them.
Safety and Driver Assistance
Before setting off, it is worth locating the essentials while still parked: lights, wipers, the hazard switch, mirror and seat adjustment. Learning them later, in traffic or heavy rain, turns a simple action into a distraction.
Multimedia and Connectivity
Phones drain quickly when navigation runs all day, so a route that leans on the screen also depends on keeping it powered. Where a charging point is available, using it early beats waiting for a warning.