She was a child star and therefore has lived in a narcissistic show biz bubble her entire life, with people pretending she is smart simply because she’s pretty. She is simply incapable of understanding the average person would find what she says incredibly stupid if they weren’t working for her or trying to get in her pants
I wouldn’t go so far as to call her a child star.
Child actor on a 2nd rate sitcom yes, 3rd banana behind the 2 adult actors.