Do all countries have a minimum legal age of marriage?

Most countries around the world have laws that set a minimum age of marriage, usually at age 18.However, many countries provide exceptions to the minimum age of marriage, upon parental consent or authorisation of the court. Other exceptions allow customary or religious laws that set lower minimum ages of marriage to take precedence over national law. Such exceptions undermine the efficacy of legal protections against child marriage.According to a recent mapping of minimum age of marriage laws by the World Policy Analysis Center, 93 countries legally allow girls to marry before the age of 18 with parental consent.Legal frameworks can reinforce, rather than challenge, gender inequalities.[1] The World Policy Analysis Center found that 54 countries allow for girls to marry between one and three years younger than boys. [1] World Policy Analysis Centre, Changing Children’s Chances: New Findings on Child Policy Worldwide, 2013