I was never afraid of flying.
I knew that the Ground Staff and Cabin Crews were kindly individuals only happy to do their utmost to make their customers journeys pleasant; that the ATC people were there in their eyries gazing Hawk-like at their screens to ensure the absolute safety of their charges and that Pilots were eagle-eyed, lantern jawed heroes with the reactions of a cat and the calmness of a millpond.
Then I started reading PPRuNe.
(Actually I'm not afraid of flying, it's the landings that worry me. And I still think that 'Airplane' was the best aviation documentary ever made).