Comment by cronix

One thing the drones really need to do before being deployed en masse (besides safety) is to become relatively silent. They are quite loud. I can hear a single one from about 1/2 mile away. I can't imagine what it will be like if many are flying all over, at all times. It will be like everybody is living next to an airport - something I consciously choose to not live close to due to noise pollution. Quality of life will go down, and people will become very annoyed. I own 2 drones. They are very loud and there isn't much you can do to quiet them. They are helicopters with 4x the number of blades on very tiny motors that spin very fast and are loud.