Minors – Age of Majority – Pennsylvania
The following words and phrases, when used in any statute finally enacted on or after September 1, 1937, unless the context clearly indicates otherwise, shall have the meanings given to them in this section:
“Adult.” An individual 21 years of age or over.
“Majority.” When used in reference to age, means of the age of 21 years or over.
“Minor.” An individual under the age of 21 years.
Title 1, Part V, Chap. 19, Subchapter F, § 1991
Age of Majority
Voidable except for necessaries until age 18 (common law)
Ability to Sue
18 or older may sue or be sued as adult; infant may be represented by guardian, guardian ad litem, next friend (23, §5101)
Consent to Medical Treatment