Oh boy..This is such a drag - Shikadai
-I can use this to lose weight - ChoCho
-I will surpass my shitty dad - Bolt
-What is the purpose of being a ninja? What role will we serve now even when the world is in peace?
Clearly Sarada is thinking on a higher level than anyone else,including the "prodigy" you tend to hype,and put above her.But nah,she's Sakura's daughter so you'll continously hate on her.You were banned for a reason.
Sarada is not contemplating on the Ninja system, but as to why everyone is exciting to become a ninja and why they are excited. You picked out three important shinobi, but I stated her class. Read the chapter over again and you will notice that Kishimoto has the entire class rouse and form in excitement. As for Boruto/Mitsuki. The boy in blue only states that it has finally come, and Boruto says it will be a piece of cake. Nothing there tells you bar of anything aside from them ready to become shinobi.
Sarada thinking on a higher level? That has to be some kind of backwards thinking. Sarada is complaining, not questioning:
"What is everyone going to become ... Ninjas?!"
And then after becoming a ninja, then what?!
And just the hell what does it mean to be an ninja?!
All I hear echoing around me is ninja, ninja, NINJA!!!
So godammn annoying!!
Through the thoughts of everyone getting exciting of becoming a shinobi, she does not seem interested, or in-fact she does not understand why everyone is so interested. She has no knowledge of what becoming a shinobi is, she is ignorant in the ways of shinobi and her thinking is bar none of inexperience.
You are overplaying her inner monologue when it is supposed to represent one who has yet to touch the surface of their potential, life, and understanding of what it means to become what they want.