Women-only train coach
More and more train companies have introduced women-only coaches for preventing perverts from indulging themselves.
The number of sexual criminals on trains never decreases, and this problem has annoyed train companies.
National Railroad, the former public company introduced this system once, but they abolished it by 1973 because "the service should be equally provided since men and women pay equally. They must have the same right to choose any coach." by the head of Tobu railroad company.
Throughout the discussion for over 30 years, they decided to restart this system, and we can see those coaches in the last coach in the train.
Obviously, it means that men have to be patient with crowded coaches without the right to choose. Plus there are still objections about this system mostly from men. However, as far as I am concerned, no women are feeling uncomfortable about it.
The change of the train system is widely reported in TVs. "It's very safe without men" says the interviewee who is using the train. But I think she doesn't have to worry in the first place.