I respect Japan for respecting sex like I do (I do talk about sex openly with my friends, we're pretty serious at that) and I have no problems with any kind of anime or cartoon. But I don't really watch them, I'm more to gaming XD
My sis and best friend is an otaku (avid anime fan I think?). They'd recommend me nagi no asukara, a new anime. They have the original disk and I kinda watched them. They have this Studio Ghibli-esque to them. You might want to check it out.
Back to topic, it's not asia, it's japan, they put those fan services because their cartoons have wider audiences that span from kids to old geezer. It's merely for our viewing pleasure and on some anime, commonly the mecha anime always display cute characters boys and girls (most of the time with big boobs, bouncing boobs or just plain sexy) on some part as part of a plot just to attract more people since not many like mecha anyways. All in all, fan services are meant to attract a bigger audience, which they succeed, naturally.