Isn’t in Japan that the men get a little too “gropey?”
I don’t know if that has anything to do with it.
On the subway trains they do which has now led to women-only subway cars.
Japan Tries Women-Only Train Cars to Stop Groping
2005
http://abcnews.go.com/GMA/International/story?id=803965
Japans Women Only Train Cars: Is it a Crime for Men to Ride?
2013
http://en.rocketnews24.com/2013/02/27/japans-women-only-train-cars-is-it-a-crime-for-men-to-ride/