Having a car drive itself was more tough/challenging than big or worth doing. Why didn't they try for something like teleportation? That's tough/challenging, bi

Having a car drive itself was more tough/challenging than big or worth doing. Why didn't they try for something like teleportation? That's tough/challenging, big, and worth doing, though I bet some idiot would say, "no, because it would wreck the economy" or "no, because it would put people out of work."