Social psychological explanations of addiction are reductionist and too simplistic ignoring many other important factors, which could play a role. For example, Kobus (2003) suggested that although peers may influence engage ng in addictive behaviours and substances, larger social contexts like family and society are bigger influences on an addict. This criticises social psychological explanations as growing up in a household where addictive behaviour is the social norm or in a society where addiction is encouraged would have a greater influence than peers would.