@Onion i was about to say the same thing, she's been in captivity since chindhood. From perspective of psychology, if you feel certain age while being older, it means you're stuck in the most memorable and severe traumatic experience. For example, i'm way older than i feel, but i still feel like a teenager because i'm stuck in that traumatic memory. It makes sense that she'd still act like a child. And on top of that, she was in captivily her entire life, people who has been held in captive for years may experience decline in mental, cognitive and behavioural development, it's surprising that she still acts like a relatively healthy child.
Previously known as: gh0mji, foreveryyonug