Comfort and Convenience
On a wait outside a sports club, some people like the cabin quieter so they can read a list, while others prefer talking at a normal volume, because errand companions do not share the same noise habits.
Safety and Driver Assistance
When several people share errand duty, each new driver benefits from locating the indicators, horn, and window switches in a still cabin so those basics are already mapped.
Multimedia and Connectivity
A phone that must stay powered through a supermarket and school loop is an everyday charging need; if a power outlet is present, it can be used while parked between stops.