Why are girls so sexualized in japanese culture?

Question:

especially in anime and manga, and why's it so acceptable?
please explain your answers

Answer:

Are you suggesting that it's any different in any other developed nation? Take a walk down the street and look at the posters, bus seats, and other advertisements. As they say: "Sex sells". Or better yet, turn on your television and check out the commercials. It's upsetting, but it's the way people sell stuff. If you want to make a TV show/anime or write a book/manga, and want to appeal to the biggest audience, then you make a story that appeals to girls/women, and give it visual aspects that appeal to boys/men. What appeals to boys/men the easiest? Women and sex. Again, it's a sad sign of our times, but it's the way things are done today...