@The First Dave
"one of the biggest complaints regarding Street View is that the camera is about 9 feet up, and therefore able to see over the top of normal sized fences and hedges - just like a flying drone."
Yes but that's no different from anyone driving a lorry or sitting on the top deck of a bus. If your garden/window is viewable from the road, but only in those situations, you should expect people can sometimes see in.
If you have a secluded back garden or your house is not overlooked, you do not expect any possibility of anyone looking in.