“…The structural characteristics of the family, such as socioeconomic and educational status (including income and home learning environment), but also external surroundings such as institutional childcare, account for variability in infants’ social competence ( Bronfenbrenner and Morris, 2006 ; Halle et al, 2009 ; Blomeyer et al, 2010 ; Kalb, 2017 ; Linberg A., 2017 ; Rose et al, 2018 ). Particularly for social competencies, such as problem behavior with peers and prosocial behavior, early external childcare seems to be highly relevant, due to the resulting increase in (and in some cases even first) interactions with peers and adults in the absence of a child’s parents ( Pfeffer, 2017 ; Linberg A., 2017 ; Linberg et al, 2019 ). Family context variables, such as low income, lack of social support, and migration background, are considered to be social risk factors which are potentially associated with children’s development ( Foster et al, 2005 ; Voltmer and von Salisch, 2019 ).…”