Bowlby’s monotropic attachment theory = Bowlby was an advisor to the World Health Organisation in the 1950s, following his theory that the critical period for attachment formation with the primary caregiver was the first 2 years of life, and maternal deprivation during this time could have severe emotional and intellectual consequences for the child i.e., affectionless psychopathy/criminality and mental retardation. Therefore, this led to Britain being one of the only countries in the EU not offering free childcare for children under the age of 5.