Even then I see a lot of problems, and at least 3 of them are cost. I could maybe see a step down (more of a slowfall type thing negating body weight and using jumping) but even then I don’t see that working well where all the land is owned (also: wires, momentum), and electric paragliding might be the more realistic today option (that probably isn’t all that practical either).

Sticking to the ground just makes more sense, heck for the brief moment when I had my legs not-fully-out-of-shape from riding my geared 250w ebike regularly (and after recovering from a 22 mile trip) I was wondering if a motor is even (fully) needed (assuming I could get a tri-fold knockoff or used minivelo for cheap for less weight… and possibly slightly smaller though my ebike is already 20" wheels thus a similar size category). And note I do have health issues (I still might want an ebike on a hot and sunny day, assuming a lighter bike is not a massive difference)