While K-Pop idols debuting under the age of 18 isn’t anything new, the influx of girl groups debuting recently with members as young as 14 has been controversial to many. NewJeans‘ Hyein and Lapillus‘s Haeun were two of the youngest idols in the industry when they debuted at the age of 14, while others like several CLASS:y members, IVE‘s Leeseo,…