An ageing population means a growing number of healthy older people with human capital, financial resources, and time available to contribute to economic activities. However, the economic potential of older people remains mostly underused, which leads to the question, how to make best use of the underused. One way would be fostering senior entrepreneurship. The paper discusses which factors may positively influence or hinder the self-employment of older people. Overall, attention will be drawn to the relevance of older people in the field of business and entrepreneurial economics. From an economic point of view, it seems necessary not only to focus on young people but also to take into account the large and still growing economic potential of the elderly. There seems to be a treasure in waiting.