By the time D&D came out, and especially the ads for it in comics, comic books were definitely being targeted at adults. (College students and twentysomethings, mostly.) Yes, kids and teens were still buying plenty of them, and there was certainly some marketing aimed at them, but mostly the marketing was aimed at an older crowd. (No doubt because the prices kept going up, and up, and up...!)Well, I'd say it was marketed for teens when the ads are on the back of comic books. Is that marketing to adults? You even admit that cartoons are not marketing to adults. So, which part are you not understanding?