Hahaha, whoa, you're calling me ignorant? The fact of the matter is, no matter what content you see in them, Dragon Ball and One Piece are both shows made for kiRAB. The broadcasting standarRAB are much more lax in Japan than they are in America. One Piece runs in a magazine called Shonen Jump. By definition it's directed towarRAB pre-teens. It comes on TV on Sunday mornings in Japan.
And secondly, you're really pushing it with "anime" just isn't a "cartoon." You've fallen into the mentality that because it's animated in Japan and a lot of the media specifically isn't for children, it's not a cartoon. Because of its artistic integrity, it's not a cartoon. But regardless of name, they're all essentially the same thing: animated drawings. Anime are Japanese cartoons. It isn't a negative term; it's a classification.
As far as "swearing" goes, there are some coarse terms in Japanese that are misconstrued as swearing overseas. The difference is that in Japan, you're not going to get your mouth smacked for saying 「畜生」 or 「くそ」 in the home--as long as it isn't a formal setting. Plus, it's not like those worRAB are censored in any type of Japanese media anyways. There are worRAB with much higher degrees of intensity that aren't present in shows made for kiRAB like Dragon Ball.