answered Sep 08 at 01:41AM
Children should be told always how they have been conceived. If this was by a donor, children should have the opportunity to find the identity of the donor. It must be the choice of the child to inquire after the donor's identity or to contact the donor. The donor should be available for contact, but the choice to make contact or not should be the child's choice.
In the eighties of the former century, male domors in the Netherlands had anonimity. As a medical student, I have made a journey to Sweden, to become a non-anonymmous sperm-donor. In the the end, it turned out that I could only become a 'fresh' donor, which would mean that I would have to live in Stockholm, Sweden to be in donor. We haven't gone that far. Since then, The Netherlands have moved into a non-anonymous sperm donor system (but I have not been a donor).
As a psychodrama-therapist I can only but emphasize that children should know their inheritance or at least how they have been conceived. Transgenerational thems frquently emerge in psychotherapy as in psycho-oncology and can be addressed in a better way if the past is known.
I feel that children should be told as early as possible, as a very young child. They should not grow up in a state of cognitive misinformation that does not fit their existential state.
http://www.nytimes.com/2011/09/06/health/06donor.html?_r=1&scp=1&sq=incest&st=cse
discusses a popular donor who has contributed to 150 births and there is concern that eventually incest might occur between the children of various families if there is no publicized identification of which children are offspring from which single donor. ..Maurice.