(a) All persons of the age of eighteen (18) years shall be considered to have reached the age of majority and be of full age for all purposes.

Is the age of majority 18 in all states?

In most states in the United States, the age of majority is 18 years old. However, this is not the case for every state. A total of 47 states plus Washington, D.C., have laws that set the age of majority at 18 years old.