Because you like Lady in Lady and the Tramp
It doesn't matter how noble or brave he is. Jon Snow is a bastard, and people don't let him forget it. See them in Game of Thrones.
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.
Jack Frost would rather crack a joke or throw a snowball than take anything seriously. See them in Rise of the Guardians.
Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.
Phil Coulson is a deadly field agent with the demeanor of a friendly dad. See them in Marvel Cinematic Universe.
Dipper Pines is investigating a truly strange town during the world's wildest summer vacation. See them in Gravity Falls.
Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.
Nomi Marks is a brilliant hacker with an open-minded, accepting spirit. See them in Sense8.
Napoleon Dynamite loves tater tots, mythical beasts, and reveling in his awkwardness. See them in Napoleon Dynamite.
A vampire hunter, Integra Hellsing doesn't tolerate failure, least of all her own. See them in Hellsing.
Raiden is an efficient soldier haunted by his repressed past. See them in Metal Gear Series.
Ted Mosby is a hopelessly romantic architect in search of someone to be the mother of his children. See them in How I Met Your Mother.