I think in the case of flying taxi's is just that it is a moronic idea tho.
Agree. It doesn’t have the futuristic vibe but an urban gondola type system is probably what would be best. Especially in a city where there may already be a network of structures to leverage (eg. The buildings/rooftops and elevators). It would require massive coordination or eminent domain type laws to force but end result could be pretty awesome
Because noise?
Flying taxis make a lot of sense for very specific areas (e.g. Manhattan) and applications (e.g. mountain rescue).