You're talking about from a legal sense. From everything I've heard, Japanese gender roles are really awful. Assuming that the west is the direction they should be heading towards, they seem to be many many years behind.althought fanservice its a heavy part of the japanese media (games, Tv shows, anime, manga, etc) when it comes to real life Issues Japan does takes matter in hand properly to protect women, take example, the women only carts in trains or in matters related to prostitution, woman is considered always the victim (even in cases where she solicited) so if one is caught engaging in it, is the costumer who will receive charges.
so why is such a disparity between real world views and media views?, beats me
Creating a gender specific train car for women to not get groped, shows there is a significant problem in society.