Between 2000 and 2016, more than 1,200 children under age 18 were married in Massachusetts, according to government data. Almost all of them were girls marrying adult men. Fifty-seven were under age 16, the state’s legal age of consent. The current law sets the minimum marriage age at 18, but allows children to marry with permission from a judge and parental consent. When those conditions are met, there is no statutory age limit.