From the second film, she was the complete opposite of Simba as a cub since she expressed a disinterest in becoming queen whereas Simba was excited about becoming king when he was her age. This seems to make it out that Kiara is wanting to becoming queen and kinda rubs it in Kion's face based on her attitude ("At least I have my life figured out. What are you gonna grow up to be, little brother?")
It just seems very odd to see Kiara act this way because she comes off as snobbish.
