Section 501 - Duty to support minor child; duty to support child over 18 years of age(a) The duty to support a child under the age of 18 years, whether born in or out of wedlock, rests primarily upon the child's parents.(b) Where the parents are unable to provide a minor child's minimum needs, a stepparent or a person who cohabits in the relationship of husband and wife with the parent of a minor child shall be under a duty to provide those needs. Such duty shall exist only while the child makes residence with such stepparent or person and the marriage or cohabitation continues.(c) The duty to support a child under 18 years of age, whether born in or out of wedlock, shall rest equally upon both parents.(d) Both parents have a duty to support their child over 18 years of age if such child is a student in high school and is likely to graduate. This duty ends when the child receives a high school diploma or attains age 19, whichever event first occurs.Code 1852, §§ 850-853, 1468, 1472; 26 Del. Laws, c. 137; 27 Del. Laws, c. 262, § 13; Code 1915, §§ 1463, 3033, 3061; 37 Del. Laws, c. 189, § 8; Code 1935, §§ 1634, 3526, 3548; 13 Del. C. 1953, § 501; 50 Del. Laws, c. 207, § 1; 59 Del. Laws, c. 567, § 1; 60 Del. Laws, c. 334, § 1; 70 Del. Laws, c. 186, § 1.;