A child given the memories of an adult would lack context and critical thinking ability to interpret said memories. There's a reason the vast majority of children exposed early in life to adult traumas only truly comprehend what they were exposed to as teenagers or adults. A child's understanding of abstract concepts is limited, and even as the horizons expand, they don't always do so in ways we expect.
A child forced to grow up too fast becomes an adult who never really grew up. One who still feels like a child in all the worst ways a child feels - insecure, unsure of themselves, unsure of the reliability of others, feelings surrounded by grown ups in spite of the expectation they are meant to be the grown up one now. They're metaphorically standing on a chair to reach what real grown ups can reach by simply standing, makeshift creations of a child trying to be an adult in order to survive an environment where
A child who grew up too quickly learns how to be a grown up, and changing those survival strategies as a grown up is a process that requires re-wiring the brain, like the wires of a circuitboard. A circuitboard a child makes, with little lightbulbs connected by wires, and then those lights are apparently shocking other people, so the circuitry needs re-wiring, only touching wires feels like danger to the adult who hasn't touched the wiring since childhood. What's worse, hurting oneself or others?
The problem with childhood being associated with innocence is that innocence, once lost, cannot be brought back without amnesia. Amnesia is the opposite of a child being given adult memories, an adult losing childhood, losing memories, losing maybe even their self. Children, young children, don't have selves to lose, so if they grew up with adult memories hiding in their brains, they would maybe build their identities around these memories in spite of the lack of ability to comprehend.
To do so is simple - once they become developmental milestones their peers are experiencing, that extra knowledge looks more like a gift than a burden. They'll brag, show off, be cool to their peers. Only in hindsight can a child see how young they were. Only in hindsight can an adult realize just how much weight age carries with it, why exactly children cannot comprehend adult experiences.
ns216.73.216.94da2