In the rapidly evolving industrial era, the adoption of collaborative robots, or cobots, in manufacturing environments has shown great potential. However, their widespread adoption among manufacturing small and medium-sized enterprises (SMEs) is still limited. This study aims to explore this knowledge gap by focusing on human factors related to collaborative robot adoption from the perspective of organisational decision-makers. Data were obtained through semi-structured interviews with ten top and mid-level managerial and technical decision-makers in Australian manufacturing SMEs. The findings reveal that innovativeness emerged as the most significant factor. The presence of a project champion was identified as the second influential factor. Interestingly, a new positive factor, employee capability, also emerged. Conversely, prior experience was found to have a relatively weak impact. The results contribute valuable insights to both academic literature and the practical in the field of collaborator robots.