... The methodological aspect is that nearly all the findings are based on investigations of so-called WEIRD children-that is, children who were socialized in Western, educated, industrialized, rich, and democratic cultural settings (Henrich, Heine, & Norenzayan, 2010;Nielsen, Haun, Kärtner, & Legare, 2017). The few exceptions to this general pattern suggest that fairness represents a dimension of human behavior that shows significant cross-cultural variation (Blake et al., 2015;Corbit, McAuliffe, Callaghan, Blake, & Warneken, 2017;Huppert et al., 2019;Kajanus, McAuliffe, Warneken, & Blake, 2019;Rochat et al., 2009;Schäfer, Haun, & Tomasello, 2015;Shaw & Olson, 2012;Zeidler, Herrmann, Haun, & Tomasello, 2016). For example, the work of Blake et al. (2015) revealed that whereas disadvantageous inequity aversion shows uniform emergence during middle childhood across seven diverse societies, advantageous inequity aversion emerges later in development and only in a subset of societies. ...