With societal changes in recent years, issues related to child safety in public places have become more diverse
and more complex. Every age has its hardships, and an environment in which children develop into people
who overcome such hardships is necessarily one that is not completely free of danger. Nevertheless, there is tendency
toward an excessive emphasis on safety. The children of today have been driven indoors, deprived of
spaces for group play and of natural environments that encourage a diversity of experience. The development
of IT media has further reinforced this tendency. These conditions can be said to produce bullying, abuse, isolation,
and a lack of ambition. It is critical that children's living environments, especially public spaces for playing
and learning, have a porous structure with numerous routes of escape.