Globally, the age of consent ranges from 12 years of age to 21 Average age: 16 years The age of consent laws also are contingent upon various factors, such as the type of sexual activity, the relationship between the two parties, the age and sex of both parties, and other specifics.Some states allow sex for those who are legally married, even though they are below the state's consent age. Although the United States increased the MLDA to 21 in 1984, its rate of traffic accidents and fatalities in the 1980s decreased less than that of European countries whose legal drinking ages are lower than 21.     Since 1982, two years prior to the Uniform Drinking Age Act establishing an MLDA of 21, a decline of drunk driving fatalities occurred across all age groups and demographic categories, and therefore cannot be reliably attributed to MLDA 21.Some Romeo and Juliet laws (such as the law in Michigan and Florida) do not make it legal for a person below the age of consent to have sex with a slightly older person, but will merely exempt the older partner from sex offender registration.
Gratian, a canon lawyer in the 12th century, stated that consent could not take place before 7 years of age.In most countries, until you reach this age it is illegal for somebody to have sex with you, however old they may be.Sometimes the law is slightly different when the partners are of a similar age, but there is usually still a minimum age below which sex is always illegal.Marriage license laws in the United States are reflecting that belief.In the United States, all but one state requires that a couple be 18 in order to marry without parental permission. Although a few states will waive this requirement if there is a pregnancy, teenage couples may still have to have court approval.