[video=youtube;yh7KbdU_YVs]https://www.youtube.com/watch?v=yh7KbdU_YVs[/video]
There's a big gap between these two singers. But, maturity has no age, some never grow up, this Ukrainian little girl, is very mature. She has many*responsibilities*and duties to study singing lessons, and performing.
Some never grow up, to take on responsibility.