I have a suspicion that adults don't have a fucking clue what being a child is really like - and of course I include myself in recognising the limitation of being able to remember all sorts of once upon a time things that happened - but not what it is genuinely like or how it feels.
You would think that as adults, all of us having underwent childhood (presumably), we would have a better understanding of what being a child is all about. And yet, in many ways adults behave and adopt attitudes that belie their experiences of those early formative years. Furthermore, books and films are full of examples of this curious form of anthropomorphism: child roles being merely voices for us adults to romanticise, idealise, or fantasise what it is to be young; or else our very own words and ideas are simply put into their compliant unquestioning mouths. For decades, if not centuries, women have had to put up with male authors and scriptwriters doing this to them - in some ways it must be even worse for kids. Because, by definition, they'll probably never get the chance to do anything about it.