準備買3天的KR PASS,看到YOUTH PASS要便宜1萬多WON adult child 2~5 people age: 13~25 3 days use 75,900 38,000 68,300 60,700 YOUTH PASS: juveniles of age 13 to 25 and youths with International Student Identification Card may use this pass 請問年齡符合要求的就可以,還是一定要有這個國際學生證才能買這個的?護照不是也能證明年齡嗎?