Foster care is currently preferred over institutional care when children are in the care of the state. There seems to be a consensus on the voluntary origins of foster care, nonetheless there also seems to be a growing momentum for the professionalisation of this form of youth care. We contribute to the debate by means of an analysis of 33 semi-structured interviews with foster families in Flanders, exploring the tensions between voluntaristic and professionalising tendencies in foster care. Foster parents overall labelled themselves as loving volunteers as this creates a space to fail. Yet, they also appropriate themselves a specific know-how necessary to make educational decision concerning the child. Foster parents oscillate between the ...