They're neither, they're errors of "acting before stopping and thinking". The part of your brain that considers the effects of your actions in the future and on others doesn't develop usually until at the earliest 17, at the latest 24.
This is Exactly the type of error 17 year olds make.
>Adolescents frequently know the difference between right and wrong, but they have diminished capacities to understand and process information, to communicate, to abstract from mistakes and learn from experience, to engage in logical reasoning, to control impulses, and to understand others’ reactions. The psychological evidence suggests that immaturity of adolescent judgment is not under voluntary control.
>New imaging studies reveal patterns of brain development that extend into and beyond the teenage years.6,7
This is Exactly the type of error 17 year olds make.
>Adolescents frequently know the difference between right and wrong, but they have diminished capacities to understand and process information, to communicate, to abstract from mistakes and learn from experience, to engage in logical reasoning, to control impulses, and to understand others’ reactions. The psychological evidence suggests that immaturity of adolescent judgment is not under voluntary control. >New imaging studies reveal patterns of brain development that extend into and beyond the teenage years.6,7
From: http://www.hhs.gov/opa/familylife/annualconfabstracts/brain_...