Gonna merge this with the other Ash's age thread just because there's no reason to have a bunch floating around. ;x
But this theory still doesn't work due to the beginning of Best Wishes. It's clearly stated in both the Japanese and the English dub that Ash is 10 years old. Unless they retcon this by editing out the line for re-broadcast, Ash has not aged and everything has taken place in less than two months, due to him being 10 years and 10 months when his journey began.
I wouldn't mind them doing a significant time skip at some point though. Like we just skip out on about six years of Ash's life and he comes back as the group mother/mentor? That'd be interesting. Maybe they'll do that for Kalos, since it has plenty of kid characters to work with already.
There's an alternate theory to the whole Ash being 10 year old thing, because unless they just stop counting their age past 10, at least a year or 2 should've passed by now. One year can at least be confirmed, since in the Pikachu short for the third movie, Ash celebrated his 1 year anniversary of being friends with Pikachu.
Now, this other theory is regarding Ho-oh from the very first episode of the anime, where Ash wishes that he'd have a journey that'd last forever, just as Ho-oh flew by. Ho-oh's Pokedex entry in DPPt says the following: "It possesses seven-colored wings. It is said that those who see Ho-Oh are promised an eternal happiness." Some believe that Ho-oh may have granted his wish to give him the promised "eternal happiness", which imo, is a bit more believable than the coma theory, since it's mostly canon :p
So yeah, a good reason to why Ash is still 10 years despite over a year passing, however it doesn't really explain why other people still say that he's 10, since they wouldn't know that, unless Ho-oh actually implemented it into the minds of everyone.
Still though, we don't really know how time progresses in that series - For them their weeks could be 10 days, their months 40 days, their years 24 months. Or any other random combo of numbers.
Yeah, but it could take place at different times in different regions.He's still currently 10 although it feels like he should be about 15 because the PL takes place once every year
I think they made Ash to be 10 and back to being his old inexperienced self for the Unova series because, just like with the games, they wanted it to be a "new beginning" . Probably trying to appeal to the newer generation & all. Because, by Sinnoh, Ash would be like 13.
But I read somewhere that the devs wanted Black & White to give that "nostalgic feeling" Red and Blue gave. They made it a whole new beginning with new Pokémon and stuff to discover.
So guess they figured they'd do the same in the anime.