Re: Ash's Age
Ash isn't 11 in canon, because he was specifically stated to be 10 at the start of his Unovian journey.
Ash is similar to many cartoon characters in that he never ages. Notice how Bart Simpson is still 10, despite there being many Christmas episodes? Bad example, but the point still stands.
Ash is 10 and forever will be. Anyone who says otherwise is just in denial that they will 'grow out' of their beloved anime character. :p