However, some private higher school students under the old system did not have the white stripes on their caps, and students at Seijo High School who were unhappy about this started a 'White Stripes Movement.'
しかし、旧制私立高校では帽子に白線がない学校もあり、成城高校では生徒がそれを不満として「白線運動」をおこしたという。