Araki has said that he was inspired by Clint Eastwood in Jotaro’s creation, and I think the idea of a taciturn, teenage Clint Eastwood is kind of brilliant. It’s a teenager trying to be cool like Clint Eastwood but not quite pulling it off because all teenagers are dorks. Look at his big YOU ARE EVIL speech to Kakyoin: He beats up people a little too much, he lashes out at teachers, and he doesn’t pay at restaurants when he doesn’t like the food, BUT HE KNOWS TRUE EVIL WHEN HE SEES IT. Jotaro is SUCH A DORK. The ladies above are fooled, because they are teenagers and have terrible taste, but Holly can see right through him. That’s why it never bothers her when Jotaro is in one of his asshole “YOU’RE SUCH A BITCH, MOM, GAWD” moods. He doesn’t mean it. He’s just a dumb teenager trying to be cool and independent without really knowing how to express or live it. Jotaro cares about things; his mom knows it, though lol at Jotaro trying to be COOL AND SERIOUS even when he’s asking his mom if she feels OK.
Also, Jotaro is clearly moe as fuck, because his entire family line is super moe."