In this research project, we will investigate various potential criticisms and opinions from the general public about the possibilities of various child-rearing environments. Furthermore, based on the results, we will propose modifications to the system and build requirements for CCC to be accepted by society in general, ultimately aiming to gain a broad understanding of the benefits of CCC and to create an atmosphere of acceptance for voluntary choice of various forms of child-rearing.

We created a series of texts and illustrations explaining CCC through graphic recordings of meetings held during the project to organize the concept of CCC. Along with these materials, we conducted picture surveys of existing systems related to child rearing and possible new rearing environments in the future.
As a result of these surveys, we found that some extent of agreement was to be expected regarding the importance of allowing each parent and child to self-determine the environment and parenting style that best fits their needs, as well as the current concept of CCC. On the other hand, the results suggest that many people seem to have concerns about the feasibility of allowing each family to choose its own family form and privacy protections.
Taking the survey results into account, we produced a brochure in Japanese in which we present examples of custody sharing as it has been practiced to date and our current thinking on shared parental care.

The leaflets are repeatedly revised based on evaluations and comments collected at closed workshops attended by non-professionals and persons actually engaged in child-rearing.