early marriage can also have negative intergenerational effects as children are less likely to be educated or immunised if their mother has not received an education world bank countries with a lower incidence of early marriage are more likely to have a higher gross female secondary school enrolment rate in south africa for example of women aged are married and the country has a gross female secondary school enrolment rate of by contrast in chad of women aged are married and the gross female secondary school enrolment is