Older people constitute a large proportion of the population in general and of healthcare clients in particular, and the proportion of older people in both groups is expected to increase in the future (WHO, 2018). Growing numbers of skilled nursing staff will, therefore, be needed to meet the future demand for gerontological nursing care (United Nations, Department of Economic and Social Affairs, Population Division, 2017). Nurses are trained in higher education institutions (Amini et al., 2016;Råholm et al., 2010) all over the world at an average annual rate of average 46 nurses per 100,000 inhabitants in OECD countries (OECD, 2017). Studies in