Edited the xxxHolic example to conform more closely to the definition of Seinen as described in its article, including pruning the below comment which implies a lack of distinction between Seinen and Josei.

• Seinen means it's targetted at adults of both genders. Do you mean shonen?

Pruned the Star Wars example for natter. Yup, deleting tenuous Rule 34 justifications for an animated fourteen year old Clone Wars character - TV Tropes has officially Ruined My Life.

• She's enough of a stick figure by figure to pass for fourteen. In fact, it wouldn't look plausible if she was supposed to be older. Perhaps the somewhat deforming animation style is to blame for not everyone noticing. And on what century was that outfit skanky? (Answer: sometime in the last century, when they still censored navels.) Doesn't stop Rule Thirty Four, of course, but nothing does.
• Ahsoka's 17 by the end of the Clone Wars, if that helps.
• So what if she's 14? She's not human. Her whole race's growth rate could just be different and reach puberty way faster. It's silly to think that all alien races are fully grown adult at the same age of 18.
  • Arguably in fiction, US law is universal when determining if someone's of age or not.
    • ... *facepalm*
    • ... *doublefaceplam*