User blog:RadicalPatMan/Why does everyone want Lincoln to graduate in Season 3?

I've seen everybody's wishlists for Season 3 and they all want Lincoln and his siblings to grow up and age. Now, I have one question for that. Why does everyone want Lincoln to age even though that'll never happen since the series will always be on a floating timeline where the characters never age? I mean Simpsons and Hey Arnold are slice of life cartoons, but the characters don't age there (Well Hey Arnold The Jungle Movie does take place two yaers  after the series, but that's cause its' a series finale) and they're still popular.