Ideally, 2019 would be the start of 4th gen because of Itzy and TXT's debut, two followup groups to third gen leaders Twice and BTS.
But in reality, it's just weird to put 2018 groups like Gidle and Izone in amongst third generation veterans Red Velvet, Mamamoo, Gfriend, Twice and BP. Do we really wanna put 14 year old Wonyoung and 15 year old Yujin in the same generation as 31 year old Irene??? Same with putting 2018 boy groups like Stray Kids in the same generation as literal grown ass 30 year olds in Got 7.
2018 is the start of 4th generation.
That’s not weird at all, even among g idle and other 4th gen groups the age difference can really big so it literally means nothing
