Because you like Butthead in Beavis and Butthead
Violet Parr is an angsty teen would love to become even more invisible than her superpowers allow. See them in The Incredibles.
Edward Kenway can be reckless and greedy, but he's learning that his ancient ancestry carries a noble burden. See them in Assassin's Creed Series.
The only defense Earth has against alien invaders are giant robots in the hands of pilots like Kaworu. See them in Neon Genesis Evangelion.
Raphael is a short-fused hothead who loves a good fight and some tasty pizza. See them in Teenage Mutant Ninja Turtles.
Faced with inequality, Gale Hawthorne has a rebellious spirit that only grows. See them in The Hunger Games .
Madoka Kaname's new world of witches is challenging her optimism. Still, even in the worst of circumstances, she holds onto hope. See them in Puella Magi Madoka Magica.
Newt Scamander is more comfortable with animals than people, even if the animals are super-dangerous magical creatures. See them in Fantastic Beasts and Where To Find Them.
Bedside manner is for chumps, not the brilliant Dr. Gregory House. See them in House M.D..
When the going gets tough, Rick Grimes gets tougher. It's a very useful trait when the world goes to hell. See them in The Walking Dead.
With great power comes great responsibility, but Peter Parker always seems to get the short end of that bargain. See them in Marvel Cinematic Universe.
Edward Elric has a quick mind along with a quick temper. See them in Fullmetal Alchemist.