Idols debuting 13/14 has always been a thing in Kpop, from Boa, Krystal, Taemin, Hyuna, Sohee, Kara's Jiyoung, Apink's Hayoung, 4minute's Sohyun, April's Jinsol and Fromis_9's Jiheon, among many other nugu groups (for example multiple members of the groups Chocolat and c.real in 2011)