The kids case is one where camera has a clear benefit I'd say. Even if you have clear visibility to the rear window, you just can't see anything below the windo

The kids case is one where camera has a clear benefit I'd say. Even if you have clear visibility to the rear window, you just can't see anything below the window height. And anyone coming from the sides you'd not see through the rear window either - but a very open vehicle might be a tad better through the side windows? Although with cameras being added to side mirrors or vehicle corners (and large screens!), that can also be expanded.