The "Tender Years Rule" Was a Norm Specifying That

The "tender years rule" was a norm specifying that

A) Young children should not work in factories.
B) In divorce, a mother should automatically get custody of minor children unless proven unfit.
C) Divorce would not be allowed if the couple had children younger than 5 years of age.
D) Children younger than 15 would need parental permission to marry.
E) Children should not be spanked until they were at least 3 years old.