Yeah, she died as a teen and the youngest in the family whom tend to take longer to act mature
... I'm sorry your words are a bit, ironically, contradicting each other.
"Mentally she is not a child-", "Her brain is still that of a child-"
I just find it kind of hilarious
Okay, yeah, i see my mistake there. What i meant by “mentally she is not a child” is the fact that she had lived before and is old and capable enough to think and act semi-mature. “Her brain is still that of a child” meant that her current body is still a child, therefore her physical brain is still a child. Hence, she will act like a child because of it. The age of her physical brain will affect what she do despite being mentally old. If she is not required to “survive” and use her knowledge of her past life, she would be acting like an adult despite her age. But since she isnt, she is allowed to grow like a child in a loving family, so thats why she is “acting like a child despite being mentally old”
Mentally she is not a child, sure, we can argue about her true age any day but physically she is still a child. Her brain is still that of a child, so OF COURSE she’s gonna act like a child. She just have an old soul thats all. She can think like a teenager because of her mental age, but even then, she died when she is a teenager, so basically still a child. Sure it is totally different than Suddenly I Became a Princess where she acts like a kid to survive, but thats exactly why she can act like a child. Finea doesn’t have to ‘survive in a different world’ trope that forces her to actually be mature than anyone else despite her physical age. She isnt driven with revenge like the FLs in Lady Baby or I’ll Be the Matriarch of this Family. She just died from her past life and reincarnated into another life. She is allowed to act like her age because her surrounding allowed her to be a child.
So i dont understand why everyone hates her from acting like a blushing girl from getting a flower. Like its so rare irl already, i would have loved it if someone gave me a flower, even if its from a kid. But well, we are entitled to have different opinions. So yeah