If every movie/TV show or whatever was realistic, God, I would never watch anything.
That's the whole idea of movies/TV shows/comics, mostly the best ones are fantasy and things that won't happen in real life. Because real life is boring compared to a fantasy you yourself can create and where anything is possible.
Yeah, but they style is generally the same.
I don't think you ever watched anything else than Lucky Star. There's plenty of anime that don't have the big ass eyes girls.