You certainly raise an emotional and ethical dilemma here. This hits home for me because my biological father was not known to me until I sought him out in my early thirties and my mom never married, so having a biological or custodial dad was never an option. The DNA testing can certainly force accountability and answer questions that often trouble parents and children. But you're right, it's the child who ultimately suffers. Of course we always want the ideal, but wouldn't it be great if the choice to have sex meant a commitment to care for a child should the responsibility present itself? I don't have the answers but I admire those who take their role as father seriously and do my best to provide for my children what I never had. I also admire those who take their role as father seriously even when they are not the biological father. This to me is the definition of a "real" father.