Think of what the world would be like without skilled pilots - or plumbers!
I've never flown an airplane, but I'm sure I could manage it 90 percent of the time. All I'd need is an experienced pilot to take off, then set the controls while I sat in the pilot's seat, then take over the controls again when it came time to land. But 90 percent of the time it would be me flying that plane.
C'mon, how'd you like to let me take you for a spin!