Why parents have no duty to select 'the best' children

Abstract

Preimplantation genetic diagnosis (PGD) is available where there is a 'significant risk of a serious genetic condition being present in the embryo', the criteria established by the Human Fertilisation and Embryology Authority (HFEA) and Human Genetics Commission (HGC). There are a number of controversies about this practice, notably to what extent people can agree on the term 'serious' and whether 'serious' should only mean 'serious for the possible child' or whether it might also, or sometimes instead, mean 'serious for the prospective parents'. This paper moves into different controversial territory by considering the scope of reproductive autonomy beyond selection against serious genetic conditions. Here I consider the argument that parents might actually be morally required to select children with what are sometimes called 'enhanced' features or traits to select 'the best' as this has been described. Reflection on the realities and costs of an attempt to use in vitro fertilization (IVF) and PGD to select 'the best' possible child rebuts the argument in favour of any such 'maximizing' duty on behalf of prospective parents.