Some (not many) agencies encourage a complete disclosure of identities between birthparents and adopting parents, as well as an ongoing close relationship. Agencies that support fully open disclosures believe that an open adoption is a better way for both adoptive parents and birthparents—as well as the children. Agencies that don't support open adoption feel just as strongly that continued contact is not a good idea for any of the parties.
Like any relationship, open adoption relationships evolve over time. Post-adoption contact may increase or decrease, or the nature of the contact may change along with people’s changing lives. However, even in the most open adoption relationship, the birth parent is not a co-parent but rather another very important person in the child’s life. The child’s adoptive parent(s) are his or her legal parent(s) and they have all rights and responsibility for the child. Most importantly, when birth parents and adoptive parents set out to forge their relationship, the child’s needs must always be paramount.
If adoptive parents have chosen closed adoption as a preference, they may feel closed adoption allows them to parent without interference or worry that an open adoption would confuse their child. If birth parents have chosen to keep the adoption closed, the benefits will also be tied to the reasons for this choice. The placement may be due to wanting the child out of a bad situation, and the closed adoption allows for security. If the child is a product of sexual assault, closed adoption may benefit the privacy and emotions of both the birth parent and child. A birth parent may also choose to keep an adoption closed because an open adoption would be too difficult emotionally. A closed adoption may be viewed, in this case, as an opportunity to try to move on.
The probate laws of most states in the U.S. prohibit an adoptee from automatically inheriting from his or her birth parents. This applies regardless of whether or not the birth father participated in or agreed to the adoption. Had the adoption not have taken place, any son or daughter would be an heir upon his or her father's death—regardless of who his childhood caretakers were. There can be additional complications if the birth father has subsequently moved to another state. Should a birth parent include an "unknown" adoptee in his or her will, the probate court has no obligation to fulfill this type of request, while "known" adoptees may have the same status as non-family members. However, there is some variation in probate laws from one state to another.
A 1996 study reported in Child Development found that all the children studied “reported positive levels of self-esteem, curiosity about their birthparents, and satisfaction with the openness situation” regardless of whether their adoptions were closed, semi-open, or open. What this seems to mean is that the child's sense of security in his adoptive family is more important than contact with the birth family.