We would need a lot of landing pads free of nearby hazards (trees, wires, antennas). Those pads generally can't just be added on to existing buildings: most hig

We would need a lot of landing pads free of nearby hazards (trees, wires, antennas). Those pads generally can't just be added on to existing buildings: most high-rise buildings weren't designed to support the necessary weight, plus roofs are already full of other equipment. Assuming appropriate sites can be found, there will also be a long permitting process to get construction approval. The latest eVTOL aircraft are quieter than conventional helicopters but still loud so anyone living and working nearby is going to complain. I'm sure they'll also raise environmental impact concerns in many areas because the noise will prevent the endangered yellow-footed salamander from laying eggs or whatever so working through the mandated mitigation process also takes years.