>>536108698
You're judging him by the art. Pay attention to the words that come out of his mouth because that's what Ian writes.
>we are way past that
Are you one of those people that thinks he "developed" into being more polite? Impoliteness is actually heavily baked into many parts of his character. He's just not written that way in the comics because the writers literally didn't know about it and thought he just was supposed to be like Trunks.