I dont like when people sexualizes Fern

I actually like her, but every time i see people down bad for her or sexualizing her it just feels... Wrong, idk if it's just me, but as someone who watched the anime and read the manga and is actually invested in it i still see Fern as that small kid that Heiter saved and Frieren teached, even as an adult. When people sexualizes her, it feels like if someone your age was trying to flirt with a friend's daughter, even if she's an adult too, it irks me.