How often do you give people the benefit of the doubt?
You might believe there are people or groups of people in your life who ‘don’t deserve it’. We make assumptions. Our brains naturally want to sort and classify all the other humans and we choose to believe generalizations and that allow us to see how we differ on a superficial level.
You might have people in your life where you have assumed you know ‘where they are coming from’ based on past actions or words. Your brain likes to create rules about the other humans, even if those rules are based on our interpretation of their behavior. Offering the benefit of the doubt to those people would mean having to re-think our rules and your brain has an innate resistance to the extra credit work.
Consider the person who cuts you off in traffic or who is driving too slow in the left lane. You assume he is an asshole and that he has no respect. Or that he is too self-centered to care about anyone else.