Philosophy for Children (P4C) approach, founded by American thinker and educator Matthew Lipman, has become widespread both in the world and in our country, from the second half of the twentieth century to the present day and has gained considerable popularity in a short time. The ability to observe and measure the positive contribution of the activities to the development of children's cognitive and social skills in short term also played a role in the increase in interest and demand for P4C. P4C, on the other hand, is not a static approach that has reached its final form and content. Just like other educational approaches, P4C has a structure which contains opportunities to become more effective and efficient and whose contents and methods are constantly developed and updated. Accordingly, the aim of this study is to suggest a new activity aimed at increasing the qualitative efficiency of P4C approach. When planning P4C processes, it should be taken into account that children are in constant interaction with their social environment, that their mental and social identities are shaped by this interaction, and that parents are the most influential figures in this formation process. Therefore, it is argued that if parents are included in P4C processes and even encouraged to play an active role in the process, there will be a significant increase in the transformative power of the activities and the gains they will provide. Based on this determination, the last part of our study presents a “mental immunity” themed content suggestion that can be used in the activities that are proposed to be carried out with parents.