Now I completely agree with idols not debuting until they're at least 16 years of age, but after watching a few videos about trainee life in kpop, I'm now wondering why some (Not all) people ignore this part when discussing age. Trainee life is hard if not even harder than idol life. You have to practice constantly and push your body's limits. Keep in mind some kids become trainees as young as 8 years old (Ex: Twice's Jihyo) Do you think an 8 year old should be working that hard on a daily basis? It's fine if they get some exercise by dancing a bit because exercise is more important than ever at that age. But they should be having fun playing with friends. It's not even just the dancing that is concerning. You get lots and lots of criticism. Criticism is a good thing but when it's to the degree that it is in trainee life, it can really devalue somebody with a rapidly developing brain at 8-12 years old. Not to mention weight checks (I know JYP does those idk about other companies) Weight shouldn't even matter at all to anybody let alone a child as long as you're healthy.
I think if you're a teen and you really wanna become an idol, it's fine. Your brain is developed enough and you'll still have time to polish your skills before debut. The goal with my post is to say that it's a little much when you're only a child or a preteen. At that age, your body shouldn't be capable of the degree of work that trainees put in. That may vary between companies though. I'm interested to see what others think whether they agree or not.