why we don’t follow our intuition

We've all made choices that conflict with our intuition and then looked back and wished we'd trusted what some part of us already knew. We might feel down about ourselves when this happens. Maybe we experience shame, embarrassment, and anger.  Perhaps we close the blinds and don't want to tell anyone what has happened for fear of being met with the proverbial "I told ya so." 

Following our head over our body is not a personal defect. This is something we've been trained to do -- often from very early on in our lives.