Because you like Konata Izumi in Lucky Star
Where Ash comes from, food and shelter pay for themselves. Even as a penniless vagrant, he is able to pursue his dream of becoming a Pokémon Master See them in Pokemon.
Donatello might come off as a tad nerdy, but don't let his geekiness fool you. He's a trained ninja and a skilled fighter. See them in Teenage Mutant Ninja Turtles.
Ursula will oh-so-generously grant your wishes for a price. See them in The Little Mermaid.
Marge Simpson is a mostly happy housewife and subscriber to Sponge and Vacuum Magazine. See them in The Simpsons.
The fearless bodyguard of Rick Flag, Katana will ruthlessly kill her enemies, trapping their souls in her sword. See them in DC Extended Universe.
Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.
Sometimes being a supportive girlfriend like Ophelia doesn't work out too well. See them in Hamlet.
Krusty The Clown somehow makes life sillier and more somber at the same time. See them in The Simpsons.
Born and raised in the darkness, Bane is determined to have the city totally under his control so that he can demolish it. See them in DC Extended Universe.
Experiment 626 was designed for one thing: to destroy everything he touches. See them in Lilo & Stich.