The Quolia of Childhood

When I was small, the world around me was different, even time does not matter, if I went back to past, the world must be different. The quality and smell, and color, how I felt, how I thought, all different. It's not about which one is better, but it's about implication that we lose something as we grow up. Of course, we got something we did not have, so why not get something we lost back?
I remember, when I woke up when I was small, the color and feeling was different. Like Yumi Matsutoya's song, I woke up with kind feeling. And now I woke up with feeling drowsy and tired rather than kindness. And how I saw things around me was different. It was full of curiosity, always ask what I did not know without managing question, And how I communicate with friends was different, I talked to them without taking care of snobbery like fashion, women, etc.
I knew it was nothing about what you wear, which school you are going. I talked to them because I saw them, now I sometimes see them with other things.