Del. Code 6, § 2705 : Commerce And Trade — Contracts — General Provisions — Age of majority; capacity to contract Date: 2 Sep 2016 TEXT PDF Current through 2016 Legislative Session, Act 399 Any person who has attained 18 years of age shall have full capacity to contract; provided such person has not been declared legally incompetent to contract for reasons other than age. Any person who has attained the age of 18 years shall become fully responsible for that person's own contracts. Del. C. § 2705 6 Del. C. 1953, § 2705; 57 Del. Laws, c. 74; 58 Del. Laws, c. 511, § 8; 70 Del. Laws, c. 186, § 1.;