Moms: Put us both on birth certificate

What do you think of this? The only concern that I would have about it is the small possibility that the child would may need to know the biological family history for health reasons. But then again, I guess adopted people may have the same difficulty. hmmm...


http://www.desmoinesregister.com/article/20110307/NEWS01/103070319/Moms-Put-us-both-on-birth-certificate


I would like to know from a doctor's perspective, how important is it that people know their genetic family history. And if it is important, how often do they find it important?