Age of marriage and Age of consent

Age of consent and age of marriage are semantically related. In some cases you can use "Age of consent" instead a noun "Age of marriage".

Age of consent noun - The minimum age for marrying without parental consent or the minimum age for consensual sexual relations; intercourse at an earlier age can result in a charge of assault or statutory rape; the age differs in different states of the Union.

Age of marriage and age of consent are semantically related. You can use "Age of marriage" instead a noun phrase "Age of consent".