Flight in general is unforgiving this way. There's only so much practicing you can do under 20 ft and 20 mph. Airplanes you can at least use simulators and fl

Flight in general is unforgiving this way. There's only so much practicing you can do under 20 ft and 20 mph. Airplanes you can at least use simulators and flight instructors who can take control when you mess up; jetpacks you lose any opportunity for a co-pilot, so you probably need good flight simulators you can log hundreds of hours in before strapping in.