From the publisher's indicia: "Ranma1/2 is rated T+ for older teens. It may contain..." Well who cares about publishers covering their backsides? This series (and the latest is vol.26) is suitable for anyone who can appreciate the content and that extends far beyond the presumed target audience to even include adults of mature sensibilities (though it helps if they have a sense of the absurd). Ranma 1/2 ranks alongside the best of graphic stories in that it is supremely entertaining.
I'd say this was suitable for anyone who enjoys the work of Alan Moore, Los Bros Hernandez,George Herriman, Joss Whedon, Robert Crumb, and Hayao Miyazaki, to name but a few, because on its own terms it is as good as any of them. On its own terms.
We aren't talking high art here, people, we're talking fun and nothing but fun (plus oblique perceptive comments on the roles of the sexes). It is constantly and consistently inventive, laugh out loud funny, and manages to engage sympathy for its characters despite most of them being self-centred, bad-tempered, petty, spiteful, violent, and unbelievably obtuse. They are also superhumanly resistant to damage, which is just as well given the bizarre variety of martial arts on display. And rather than running out of steam, the series gets stranger, more complex, and funnier as it continues. It also contains (among much more) scenes of nudity, sexual innuendo, romantic situations, eating, sport, fantasy, and frequent bathing. What more could a boy or girl want?
A couple of months ago, already hooked by Takahashi's 'Maison Ikkoku', I downloaded a couple of episodes off the net, liked what I saw, picked up three of the books on Ebay, and now own all 26 published to date (say 'thank you', Amazon). Try this book and that could well happen to you. Go on, try it out, it's the most fun you could have apart from...
Well, actually, right now I can't think of anything else.