From the Stanford Encyclopedia entry on Philosophy for Children linked previously:
Nevertheless, because they lack background in the formal study of philosophy, many teachers are reluctant to encourage the philosophical thinking of their students. Their fears, however, are exaggerated. Familiarity with some of the standard philosophical literature might be desirable, but it is not necessary for bringing Philosophy for Children into the classroom. What is required is the ability to facilitate philosophical discussion. For this, it is much more important that teachers have some philosophical curiosity themselves than a familiarity with academic philosophical literature. Like their students, teachers unfamiliar with the discipline of philosophy may nevertheless have an aptitude for philosophical thinking—or at least a knack for recognizing when others are engaged in philosophical thought. [emphasis added]
And why should teacher and student alike possess a philosophical curiosity? Because it facilitates better living.