Over 200,000 minors were married in the United States between 2000 and 2015, though data is lacking from some states. Most child marriages involve minor girls marrying adult men, with some cases of girls as young as 10 years old. While the legal age of marriage is 18 in most countries, U.S. law allows all states to set exceptions permitting marriage under the age of 18, such as with parental or judicial consent or in cases of pregnancy. Reforms are slowly being implemented to restrict child marriage, but laws still vary widely by state.