You’ve hit the nail on the head. You need a big clearance for landing and take off, with dedicated space and easy ways for people to get to it. This is crazy ex

You’ve hit the nail on the head. You need a big clearance for landing and take off, with dedicated space and easy ways for people to get to it. This is crazy expensive real estate, doesn’t scale usually beyond 1 target (unlike a parking structure), is scarce, and is ultimately the biggest constraint here that cannot be overcome by technology.