Last Sunday , I decided to revisit my childhood since I was in the area ... My Kindergarten ! I ca n't believe it has been 17 - 18 years ... the only clear memory I have of this PAP Kindergarten is more to do with my sis who also went to the school . She keept puking the entire first week in school . The teachers got fed - up they asked my mum to come in and mop her puke .
According to the above context, answer the following question.
Why is the narrator acting so nostalgic ?


They returned to their elementary school .