Comfort and Convenience
Some people like a cooler cabin for a short afternoon errand, while others prefer warmer air after standing at a bus stop, so the same trip is set differently.
Safety and Driver Assistance
Locating the lights, indicators, and demister in the driveway before a rainy morning commute makes those switches already known once the car is moving.
Multimedia and Connectivity
Wanting background music on a supermarket run means playback that can be started and paused in the cabin, if that function exists, without using the handset for listening.