it would be scary yes - until there is the technology to make flying/shuttle cars safe. There would be no need for Air Traffic controllers if each car was able to negotiate the airspace by 'interlinking' with other vehicles and buildings around it.

I get a bit scared when I hear those little planes doing their 'stunts' in the airspace near us. They cut their engines and I think there is a chance they can land on a house or two. Obviously there is a risk of it happening - it has happened in Salford. The night before it happened I actually had a nightmare about an aircraft crashing into 2 houses!