Hero Costumes as Prosocial Nudges

A field experiment in Milan found that a person dressed as Batman standing near a pregnant rider nearly doubled the rate that passengers gave up seats, and 44% of respondents later said they hadn’t consciously noticed Batman. This suggests that culturally resonant visual symbols can function as unconscious attentional jolts that increase present‑moment social awareness and prosocial acts. — If simple symbolic cues can reliably increase helping behavior in public spaces, policymakers and civic designers could leverage (or regulate) such low‑cost nudges for crowd management, public‑health campaigns, and urban design — raising practical and ethical questions about manipulation versus encouragement.