 For instance, Nelson argues that our common-sense understanding of moral responsibility is what best explains our intuitions about parenthood following unintentional procreation. On the common-sense view, individuals are morally responsible for the consequences of their free actions when (1) their actions are sufficient to bring about those consequences, and (2) their actions are causally proximate to the consequence in question. Gamete donors satisfy these conditions. Nelson further argues that gamete donors’ causal involvement in creating children does not significantly depart from that of unintentional parents (at least not in morally relevant respects) and therefore consistency demands that gamete donors be ascribed parental responsibilities as well (Nelson 1999, 2014). 