Comfort and Convenience
Some people like a breeze from an open window on a mild day, while others prefer the glass up so conversation stays easy. That preference often changes with weather.
Safety and Driver Assistance
When someone else last used the car, checking the light switch and wiper stalk before you leave home tells you whether they were left on, so you start the trip from a known setup.
Multimedia and Connectivity
If you want a podcast on the drive to work, starting playback while parked avoids tapping through menus once you are already rolling.