Women tend to have reliable first-hand information as to whether they gave birth to a particular child, so maternity tests occur in different social and legal c

Women tend to have reliable first-hand information as to whether they gave birth to a particular child, so maternity tests occur in different social and legal contexts and have different consequences. (Admittedly giving birth to a given child is not the same as being its genetic mother, but in most cases the distinction is not at issue.)