Yeah it's just something that's in our innate nature to do that helps us keep "good" people around us and the bad people away. I think everyone knows someone who they are nothing like, however they are fun to hang out with every now and then and they get along for civil purposes (like the people you mentioned). But sometimes the judgment is necessary for reasons that you can't control... would you let a junkie rapist watch your 5 year old daughter? Would you let a bunch of gang members watch your car? Let some children handle a gun? We use judgment for survival.
mr dance moves - good points
mr dance moves - good points