Hell you can post a video of yourself singing dancing rapping whatever. I love my steak and chicken and leg of lamb and yes also my carbs like bread and pasta and dukkbokki and leaving all this behind is definitely one reason I would never want to be a K-idol. I hope you become a trainee and debut.
According to K-pop news.
The chance of you becoming well known and being able to have an idol career is tiny. This is a way to transform yourself into a massive star. And the good news is its a lot easier than it was before. Get into an agency and sign as a trainee.