Taking care of older adults is among the major challenges currently faced by ageing populations. Researchers, designers, and engineers have proposed socially assistive robots as one way of helping elderly people stay in their homes longer. In a systematic literature review, this paper wants to investigate if and how evaluations of the acceptance of socially assistive robots by older people take into account sociodemographic factors. The results indicate that this only holds true for a few studies. Research that incorporates age, gender, education, and so forth; clearly shows that these key factors have a significant impact. However, the relations are complex and experience with technology mitigates the influence of sociodemographic factors on acceptance. Assistive devices should be adaptable to individual needs to be able to consider all these factors. 1. Introduction Demographic changes have accelerated population ageing, which, in turn, has an impact on the care of older persons. In view of the increasing demand for care personnel, societies around the world have to find strategies for dealing with these challenges [1]. According to researchers, designers, engineers, and other experts, assistive technologies nowadays permit older persons to live independently in their home longer [2]. Support ranges from telecare/smart homes, proactive service systems, and household robots to robot-assisted therapy and socially assistive robots [3]. Surveillance systems can detect when a person falls down, test the blood pressure, recognise severe breathing or heart problems, and immediately warn a caregiver. Interactive robots cooperate with people through bidirectional communication and provide personal assistance with everyday activities such as reminding older persons to take their medication, help them prepare food, eat, and wash [2]. These technological devices collaborate with nursing staff and family members to form a life support network for older persons by offering emotional and physical relief [4]. Japan is deemed to be the first country where population ageing will become relevant in the near future (its old-age dependency ratio is estimated to reach 76% by 2050). To cope with this situation, the Japanese government wants to introduce a nationwide system of robotic assistive technologies for aged care and heavily invests into the development of so-called service and health-care robots. This is documented by research agendas, roadmaps, and visions of Japanese institutions and ministries. In Europe, investments into assistive devices (financed within the
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