Should anonymous sperm "donation"-a misnomer, since sperm is usually purchased-be permitted? A number of countries, including Sweden, Austria, Germany, Switzerland, the Netherlands, Norway, New Zealand, and several Australian states, have answered no. The United Kingdom recently joined this list, instituting a system whereby new sperm (and egg) donors must put information into a registry, and a donor-conceived child "is entitled to request and receive their donor's name and last known address, once they reach the age of 18." The arguments offered by the legislators in these jurisdictions in favor of these measures, along with the arguments offered by scholarly proponents such as Naomi Cahn, focus on one major consideration: child welfare. The claim is that donor-conceived children are harmed when they are deprived of access to the identity of one of their genetic parents. Interestingly, opponents of these measures have battled on the same playing field, disputing the empirical evidence underlying the claim of harm to children.
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