Lewis Carroll admired young boys' innocent, unbiased approach to the world in which they lived.
He wanted to show the reader in “Alice in Wonderland” their point of view on the adult world, which includes social laws and etiquette that adults adhere to, in addition to the self-narcissism and bad habits that they adopt in their daily behavior. He also wanted to best represent the struggle of children to continue in the turbulent world of adults. In order to be digested in their minds, Alice was forced to abandon the openness that is considered a personal characteristic in young children.
As it appears, adults need rules in their lives, and they follow them without thinking about the feasibility of adhering to them. Their blind obedience pushes them to adopt incomprehensible and arbitrary behaviors at times, and Alice experienced this in Wonderland.
When she enters it, she encounters a way of living and thinking different from what she was accustomed to in her surroundings. There is a duchess trying to find logic in everything, and unfair trials against people who have committed no sin.
Alice learned from her journey to understand the adult world to some extent.