Because it is easy to do the hair in chigomage and it is a traditional, cute and refined hairstyle; from the Meiji period to prewar days in the Showa period some kindergartens and elementary schools (so-called "Ojosama gakko," schools for rich young ladies) adopted chigomage and purple hakama (pleated and divided skirt made in fine stripes) as their regulation uniform (students of junior high school or above wore swept-back hair with the bun at the back of the head).
簡単に結う事が出来、古風で可憐で気品があることから明治から昭和戦前に掛けて一部の幼稚園・小学校(いわゆるお嬢様学校)では稚児髷に紫袴を制服に制定した(中学生以上は束髪)。