According to baumrind, a parent who is uninvolved in a child's life, showing neither responsiveness nor control, is displaying a NEGLECTFUL parenting style.
Every children still haven't got enough analytic and logical skills to fully grasp what's right and wrong for them, so they need some form of guidance from the adults. By showing no response or involvement, a parent has conducted a neglect act toward their children and will bring many negative impacts for their children in the future
