Not sure adding to this existing problem is a good idea. Non-electric cars should be completely banned from city centers sooner or later. Noise is a hugely unde

Not sure adding to this existing problem is a good idea. Non-electric cars should be completely banned from city centers sooner or later. Noise is a hugely underestimated source of stress (and by proxy, illness). Automated deliveries by bots are fine, but they don't have to be in the sky. Learn from China, they've already perfected parcel delivery with electronic delivery boxes in basically every community. All that's left to do is take out the human deliveryman, which they aren't doing yet because wages are so cheap. But in the US it might already be profitable, if not yet it will be very soon.