Before their debut, the members of SEVENTEEN would have undergone rigorous training in singing, dancing, and other skills necessary for their profession. This often entails leaving their homes at a young age to live and train together in entertainment company facilities.
Some members may have faced financial struggles or other challenges growing up, while others might have had more stable backgrounds. It's important to remember that information about their personal lives is often kept private to protect their privacy and focus on their professional image.
If you want to learn more about their individual childhood experiences or any updates after i lost interest in that topic, I would recommend searching for recent interviews, articles, or documentaries that might shed light on their early years.