My fears are put to rest of pilotless airplanes.
I just rode the Monorail from Westlake Station to the SpaceNeedle, a distance of less than 1 mile I believe (it says it takes 2 mins), and there was still an operator on board and always has been since 1962 he said. Until they fully take the operator out of this loop, I'm not worried about airplanes!

USMCFLYR