In this paper, we examine how a “feeling of motivation for the elderly” was generated in a “grandchild care support course” through the case of S town in H prefecture. We also develop insights into the specific contents of “grandchild care support activities”. We conducted an interview survey with the organizer of a “Grandchild Raising Support Course” and obtained the following insights: First, in the “Grandchild Raising Support Course,” it was found that elderly people had an awareness that they were useful to their families and other people and had positive feelings. These were supported by a sense of self-affirmation, based on their achievements and improvements. Second, the contents of the “grandchild rearing support activities” were necessary because they provided “a sense of purpose of life for the elderly”. They felt able to support the child-rearing activities of the working generation, and engage in activities that make children happy. These activities gave them guidance and broadened their previous ways of thinking.