One of the things one learns in school is to adapt to different and often difficult situations. It is not about gathering information for which children go to school but to learn about life as well. They have to be explained about how life is about progress through every situation and the progress comes by widening and by cultivating the capacity to bear, adapt and eventually master and turn the challenge to our advantage. Though the girl boy distinction becomes prominent at their age, they need to understand that the distinction is mainly biological. Most of these issues get past as they grow up and not much attention is given to them. However it may be helpful sometimes to discuss with the teachers and share with them the impact of their decision on the child.
Affectionately,
Alok Da