"Different sized controls mean I can know without looking which one I’m grabbing." Two famous examples, one WWII era plane had gear up crashes because pilots p

"Different sized controls mean I can know without looking which one I’m grabbing." Two famous examples, one WWII era plane had gear up crashes because pilots pulled the wrong lever up, until the engineers replaced the landing gear levers (right next to the throttles and mixtures) with stylized landing gear wheels. Another example was a nuclear power plant where all the primary coolant loops had the identical handles causing accidents until the ops replaced all of loop1 handles with coors beer tap handles, loop2 with bud tap handles, such that you'd instantly know if you're trying to drain loop2 and you're touching all bud levers except one coors tap, you're doing it wrong. Needless to say in both cases management wanted engineers to cut the cutesy stuff out and damn the safety results all we need is more abusive harder training because professional appearance is far more important than measurable safety increases. That's why we'll be stuck with ever increasing touch screens, more pilot error accidents or distracted driver accidents are a feature not a bug to a certain mindset that just wants to yell at and blame humans for being human.