Kids want to emulate what they see, especially in "fun" entertainment. My grandfather wanted to become a circus clown. My dad talked about western-style indigenous Americans. My He-Man/GI-Joe-drenched childhood was filled with dreams of becoming a warrior/soldier. And today the heroes of "fun" entertainment are YouTubers and Twitch streamers.

The permeation you experience has been happening for a long time, only now you notice it, because the world she wants to emulate is borderline alien to you.

Don't worry, most of the times, it is a phase.