From In a Parachute-Effectiveness Trial, Who Gets the Placebo?.

It might be argued that the pressure exerted on individuals to use parachutes is yet another example of a natural, life-enhancing experience being turned into a situation of fear and dependency. The widespread use of the parachute may just be another example of doctors’ obsession with disease prevention and their misplaced belief in unproved technology to provide effective protection against occasional adverse events.