Because you like Michael Bluth in Arrested Development
Bella Swan thinks of it as her job to help her parents and protect her friends, even though it often ends up the other way around. See them in Twilight.
Lorelai Gilmore loves coffee, talking fast, flirting, movie marathons, and her daughter. See them in Gilmore Girls.
Stewie Griffin is just your average evil-genius, talking, sociopathic baby. See them in Family Guy.
Eren Jaeger will erase the Titans from this world until not a single one remains. See them in Attack on Titan.
This wizard is never late, nor is he early. Gandalf arrives precisely when he means to. See them in The Lord of the Rings.
Aslan represents everything good and just, he's just not super reliable. See them in The Chronicles of Narnia.
It’s a shame that the Seven Kingdoms doesn’t allow a woman to rule. The scheming, focused Cersei Lannister would do a far better job than either of her sons. See them in Game of Thrones.
When the going gets tough, Dre Johnson gets tougher. Well, he'd like to think he does. See them in Blackish.
People make more sense to the hyper-logical Temperance Brennan after they're dead. See them in Bones.