Advocates and child marriage survivors march from Boston Common to the State House to call for an end to child marriages in Boston, Massachusetts on September 22, 2021. - Currently 44 states in the US allow for marriage under the age 18 and the group states that according to a study they did that between 2000 and 2018 some 300,000 children, as young as 10, were legally married in the US. (Photo by Joseph Prezioso / AFP)