Maybe bc of the repetitive trauma she has. Like have some regressed age like behavior
i think it’s because for all of her lives she never really got to adulthood and in every lives she was locked in the basement, not only did she not interact with people but she’s prolly also traumatized so it makes sense why her brain hasn’t developed pass that of a child
this is very normal. children that have experienced trauma an have not been socialised properly can develop various conditions as a result. like DID. or they simply aren't mature in some aspects. like very obvious is children who were raped. especially repetitively throughout their childhood. they can grow up and act very infantile. because their mind is stuck there. they had no chance to develop and collect enough life experiences in order to grow. becoming an adult and maturing in;t something automatic. it is something that comes through experiencing different age related crisis and overcoming them successfully. if not you are stuck there. i would have thought it is very obvious, considering we live on a planet full of adults who are immature AF (especially men and especially especially men in leading positions). they didn't mature in the most crucial aspects. they are more like kids n adult costumes acting like somebody. even though they are a nobody. so even if she was reborn, her life was spent each time in the temple, being abused and locked up to be tortured until she died. and repeat. which is why her suicidality was very authentic.
This is very heartwarming but I still understand why she has lived like 16 liftetimes and yet she still seems to possess the mentality of a child? I guess it's also a bit better than a 12 year old acting like a whole adult like that lady baby manhwa, that creeper me out even more