It's SO SAD! I think it's a bit of a realization of Japanese character design, there's very little variety of body and face types with main characters, they're all thin and feminine looking. Very few main characters (or even secondary characters) have beard, or muscular body types, and NONE of them are fat. EVER. We need more manly male main characters.
There aren't too many bigger female characters either which is sad. Not necessary fat but a bit more than the basic model made of skin and bones... I've never done cosplay before because of the thin body I lack....