Comfort and Convenience
Some people like a cooler cabin on a long afternoon drive, while others prefer warmer air and less breeze from the vents. That difference is personal, so it helps to agree a temperature before the journey rather than argue later.
Safety and Driver Assistance
Before a night motorway run, it is worth sitting still and finding the lights, indicators and demister so they can be used without a pause. That short walk-through belongs in the driveway, not after the first junction.
Multimedia and Connectivity
A passenger may want a playlist for the middle of a trip, which is easier if playback is started before moving off. If that function is available, it avoids unlocking a phone while the vehicle is rolling.