Comfort and Convenience
One common preference is how much air a driver wants moving through the cabin. Some prefer steady ventilation, others find it distracting, and the same setting can suit one occupant while another quietly changes it.
Safety and Driver Assistance
Preparation is simply knowing, before you set off, which stalk or button does what. That knowledge is most useful in unfamiliar conditions, when there is no spare attention for reading labels.
Multimedia and Connectivity
Taking a call without handling the phone is an everyday need, and it depends on whatever pairing or connection a given car offers. Music and charging are separate matters, each with its own arrangement.