Fan Casting Vague Age in Sort by Tropes

Some characters are subject to a strange fluctuating sense of maturity depending on plot necessity, mostly because animated characters can have abstract designs and lack obvious visual cues (especially when the characters are non-human). We're only left with the personality of the character, which tends to suggest their age. Dawson Casting, leading to a blurring of the line between adults-playing-adults and adults-playing-teenagers, is responsible for several live-action examples.