system
Given the following post, respond as if you're commenting on Reddit:
human
[Narnia] How do Peter, Susan, Edmund and Lucy adapt so quickly to being children again?

I've encountered adults trapped in the bodies of children before and you can generally tell that you're not dealing with a child.


But these guys can spend decades as rulers of a magical land then drop straight back in to the same bodies and routine without so much as a temper tantrum.
gpt
They were not children who grew up to adults, and then suddenly reverted back to childhood.

They were children who played the parts of adults, but Peter Pan style, they were still children. This is one of the reasons Susan never marries her many suitors (*A Horse and His Boy.*)

When they do grow up, they change as people. Susan loses interest in Narnia, deciding instead to put away childish things and embrace a more adult world.

They were never adults in Narnia because Narnia isn't for adults. It's for children.

Adults trapped in the bodies of children don't go to Narnia. Children trapped in the bodies of adults, however, can.