Students in sixth grade of elementary school who are about to enter junior high school can purchase student tickets. In China, student tickets are generally applicable to students in full-time ordinary primary and secondary schools, secondary vocational schools, technical schools, as well as undergraduate and junior college students in ordinary colleges and universities. If your child is a sixth-grade primary school student and meets the relevant ticket purchase conditions, he or she can purchase student tickets. However, the specific ticket purchase conditions and procedures may vary depending on the regulations of the region and transportation department. It is recommended to consult the relevant departments or check the latest policies before purchasing tickets.