The methods of doing philosophy with children are deliberately formed to make the children more open to new solutions, to see problems from different angles, to respect their classmates and to appreciate the points of their views. This might easily lead the children to accept the idea that philosophical questions have no true answers that each opinion is of equal value. And this worries me, because I do not believe that it is true. Questions could be answered by referring to facts. As time went by they found that this was not the case and they tried to delimit philosophical questions by a tolerance criterion.
Philosophical questions are such that they have no given answers.
The step from this to the idea that there are no true answers to philosophical questions or that the truth is relative to person is not so long. But if they take this step the kids have gained in tolerance but lost in critical thinking. It is true that they might be able to criticize false authorities and look through pretentious claims to have found the truth. You can just keep to your own prejudices, since each opinion is as good as every other. Finding tendencies of this kind in our material bothered us.