legal age

Definition from Nolo’s Plain-English Law Dictionary

The age of legal majority, at which a person becomes responsible for his or her own actions. In almost all states the basic legal age is 18. State laws vary as to legal age for drinking or buying alcoholic beverages, marriage with or without parental consent, driving, prosecution for crimes, the right to choose an abortion, and liability for damages.

Definition provided by Nolo’s Plain-English Law Dictionary.