The front page of the newspaper has a story about a man wearing a clerical collar who robbed several people in their homes and escaped. that the victims readily allowed this trustworthy-looking man to enter their home shows the potential disadvantages of relying on:

I believe the answer is: The process of social categorization

The process of social categorization refers to a process where we categorize the people from a certain social with some pre-determined attributes (even though it might not be factual)

Examples of The process of social categorization could include things such as: Asians are better at math, Men are better at science, women are better at arguments, etc.