I was a child who grew up with a dad who gave me his name at birth. He was and always be my dad no matter what. My bio father who said I wasn't his did try to approach me at age 16, of which I didn't want to have anything to do with him. My dad pasted away over 20 yrs ago and I miss him dearly. I have thought about contacting my bio-father but really wouldn't know what to talk about. He made choices and really the only thing we have in common is we share the same genes, blood.
I can't remember when my mom first told me about it. But I had allot of anger toward him for a long time.
I am a mom to 2 wonderful boys and myself have remarried. My husband has been dad to them for 7 yrs. Their bio-father has chosen to leave their life for over 6 yrs now. They are 13 and 15 and do know what happened and that he was never told he couldn't see them. I went to great lengths to keep visitation. To the detriment of them. So when we were advice to seek visitation at our home. He stopped coming. He made a choice and there is nothing we can do about it. They are in counseling and have talked it over with me. It is never easy to think about a parent not wanting to be in your life. It hurts and really makes you think about why , what was wrong with you? etc.
If you feel your daughter is mature enough to handle it then talk to her about it. If she is in her teens it will be difficult. Being a teen is difficult enough then having to deal with something like that. You could also set up some counseling I do know of a place depending on where you live. But ask them their views and they will be able to help you through it.
I think everyone should have the right to know about a parent who has not been in their life. It is just a matter of doing it in the right way as to not result in anger and resentment towards you.
If you want to email me offlist please feel free to.
This is difficult to have to go through, and sad as well.