People require affection for the complete development of their nervous system. But sometimes the caregivers can't provide sufficient levels for said healthy dev

People require affection for the complete development of their nervous system. But sometimes the caregivers can't provide sufficient levels for said healthy development, often leaving a permanent scar in these younglings, a developmental trauma. Such a person won't have a sufficiently developed internal sense of self-worth, self-love and will require more external supply of validation, affection. Succeeding in various endeavors becomes a "life-and-death" issue, because at it's core it's a reflection of the imperious need of a mammal for nurturing by their parents. Often, siblings become competitive with each other for precisely this reason. They are competing for the little affection their caregiver provides.