BY THE WAY
Most societies and cultures recognise a time when children can be held accountable for their words and actions (instead of their parents).
One description that's used is "age of accountability" - when a child matures to be able to speak on their own behalf.
This falls in the transition from childhood to adulthood, beginning at puberty. At about the age of 12 logic and abstract understandings are dawning. Wisdom is, perhaps, still some way off!
These are the adolescent years of multi-faceted transitional growth.
With self-discovery, independent decision making and responsibility for personal actions builds confidence. Some time during these years the person is judged to have "come of age".
This "of age" thinking in New Zealand includes such things as marriage and qualifying for a driving licence, both are laid down legally.
Of course, these things begin with parental involvement with progress to fulfilling laws, giving full independent decision-making and self-responsibility.