Ash Ketchum from Pokemon

ash ketchum

By never growing old, I mean the anime has been airing for a long time, but the character never grows old. I think the most popular example for this kind of character is Ash Ketchum from Pokemon and Nobita and his friends from Doraemon. (Yes, I do realize that both anime are for kids - I don't remember any other example that the character never grows up for a long time). However, most characters from long-running anime that I know of always grow up, like those from Dragonball, One Piece, Naruto, Fairy Tail, and Shin-chan. (The last one I mentioned has similar traits to Pokemon and Doraemon, although I'm not sure Shin-chan is for kids). Any reason behind this?

  • I guess it depends upon the story of the anime. In pokemon, the main hero is Ash, which is the main character of the anime. If he grows old, he won't look good as a pokemon trainer xD For example, in DBZ, the goku is amain character. But if he grows old, it won't affect the anime much. That's my opinion.
    – berserk
    Commented Jan 11, 2014 at 18:03
  • 7
    See also: How is the passage of time handled in Pokemon?. Also, this is not unique to anime. Consider The Simpsons; Bart has been a pre-teen for 20+ years.
    – Cattua
    Commented Jan 11, 2014 at 18:43
  • @berserk with Goku's case, he stopped growing older by DBZ (remember he was a kid in DB) and before he could get any older he kills himself saying that it's because he's around that earth is in danger.....that doesn't stop him coming back in the Majin Saga as a spirit
    – Memor-X
    Commented Jan 12, 2014 at 21:26

2 Answers 2


The creator of Pokemon wanted children watching the show to be able to relate to the main protagonist, Ash/Satoshi (personally I believe the protagonist is Pikachu). Keeping the character around the age of ten is a good way to get kids that will be this age (ten) soon to watch the show.


A possibility is that the time leap between episodes is short. In Pokemon's case, there are about 887 episodes, but the time span between the episodes is never revealed. If each episode occurred back to back, only about 2.43 years has passed since the first episode occurred, which is a short time for some people to physically change. Another example is Detective Conan, which currently has 787 episodes. If each episode occurred back to back, about 2.15 years has passed. This is relatively short, especially for grade-schoolers, to change physically.

There are a couple exception, and one of them is Doraemon. Doraemon has more than 2000 episodes and even if each episode occurred back to back, more than 6 years has passed. For ones like these, the only probable explanation is that the author wanted to keep the characters young to appeal to younger audiences.

  • 2 years is enough for grade schooler to change significantly, especially when they are in grade 5 (if I remember correctly), as they are approaching the onset of their puberty.
    – nhahtdh
    Commented Aug 12, 2015 at 5:30
  • I have no expertise in this area, but at least in the area that I grew up in, most kids tended to stay the same (height, physically, face, etc) until their transition to high school. But I don't know, hormones might flow differently in Japan.
    – Jake Choi
    Commented Aug 12, 2015 at 5:33
  • I don't know about Japan either, but 2 years should be enough for the height of any kid to change, assuming they are not malnourished.
    – nhahtdh
    Commented Aug 12, 2015 at 5:53

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