This means that a number K-pop idols who are born in 1991 and. Jin is the the oldest member of BTS and is set to celebrate his 28th birthday on Dec. South Korean male citizens are required to enlist in the military between the ages of 18 and 28 previously 18-35.
In this table you can see some of the K-Pop idols that are currently serving their mandatory military service and their expected discharge date.
For those who are new to Korean pop culture you might be surprised to find out that idols have to serve in the South Korean military. All Korean male citizens have to enlist by the age of 28. On the other hand BTS oldest member Jin will likely have to enlist later in the year as his birthday is in December. EXO Suho enlisted on May 14 2020.