Dear Robin, 
I love your name by the way ;-). I would appreciate your parenting advice for me and my 21 yr. old daughter. She has never been told that her "Dad", is not her "biological father", and I really feel that each day not doing so, could be fatal to her. Not because she has the potential for any immediate medical problems, but because her "father" was/is an alcoholic. I'm sure that you understand my concern for her, as she is now old enough to drink legally, and is doing her all american part of such. Fortunately (and unfortunately), her "Dad" has also became an alcoholic since she went to college 2 years ago, so she sees first hand what the disease can do to even the strongest of people, in a very short period of time, and how badly it effects everyone around them.
Now I'm torn in knowing that her knowing how her Dad has become, and how it could have effected my choice 21+ years ago to leave her father, will leave her feeling about both herself and me. I don't want her to think that I would ever leave her if she ever became a victem of the disease, but I really want her to know how vulnerable she is to it, and how very sorry I am that I chose to carry a child with MY knowledge of how high risk my child would be for alcoholism. I don't regret having her, but I now feel ver selfish and guilty because she now has to carry the burden of the potential of alcoholism. Especially since my Dad/father was one too!!
Now I am going through my 2nd divorce since she was born (to her step dad as of age 9), and she is fresh out of 2 year college in LA and in deep student loan debt. To make matter worse, her alcoholic dad is dying of emphasema and alcohol, but not in a very rapid manner. It has definately effected his brain though already, and he is becoming senile and somewhat demented, but refuses medical care of any kind. As a result, he is becoming very verbally and financially abusive towards her, and it is turning her "daddy world" upside down and apart.
Then, just to top the cake, after having lived so somewhat independantly for 2 years in LA on her student loans, she had such a hard time having to move back in with me afterwards, that she totally sabotaged our relationship, trashed me and my home, and gave me no choice but to send her packing to live with her girlfriends. Robin, that killed me. Ripped my heart out , far worse than my husband did when he had me come home from work on July 4th weekend, only to find him and all of his things gone. Stuck me with the house, the animals, the bills, everything, including trying to explain what I had no clue of, to my daughter. THAT is all still in process, but I am most concerned about how and when I should tell my kid about her "father", and the choices I made 21+ years ago when I chose to keep her, but not him.  
My Dad didn't know that he was adopted, and as a result, he died at age 43 when I was 9 years old. The disease that killed him would have been easily controlled by his giving blood weekly, to remove the excess iron in his blood. Because he had no reason to worry about it (not knowing that his parents weren't his biological ones), even his doctors were clueless until his autopsy was done.
Robin, I don't want to wait for autopsy results for my child. Her life is in seriously heavy emotional upheaval right now, and she is a financial nightmare waiting to wake up. She doesn't so much as look at her bank statements, because " what the heck, the bank knows what goes in and out, and that's what they are paid to do. Handle it.". Scairy!! And I can't even afford to help her out, because I am scrambling to stay afloat myself since my husband left, and dumped it all on me as well.
I don't want to dump any more baggage on my kid, but I don't want her to fall victem of anything that she isn't even open to looking for (like my Dad was) either.
Please help me with any advice that you would be so kind as to offer. I truly do respect you and your husband's judgements and opinions.
Thanks for reading all of this, and for listening.