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Your last sentence is simply not true. Helicopters are massive in terms of volume and weight, and incredibly loud. You're also assuming our current layout of everything would stay the same. Imagine if teleportation existed, do you think cities, towns, and suburbs would still look the same?

A collision is less likely in 3D than in 2D, and obviously the chicken would be delivered to you via drone rather than the inverse.

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EVTOL isn't exactly quiet either. It will annoy the living shit out of your neighbors, particularly if everyone is doing it. Houses/apartments near airports are already cheaper for that reason.

And sure you can contrive whatever clean-slate sci-fi setting you want to try and make it make sense, but we aren't going to be ripping up existing infrastructure for it. This isn't Popular Science cover art.

Collisions are more likely if there's hundreds going to/from the same place at the same time, and also they can just fail and fall out of the sky onto dwellings, roads and businesses in ways that cars can't.

Your vision will be killed politically the first time a child playing on their swing-set or shopping with their mother or driving down the road is killed by a poorly maintained EVTOL.

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