In Japan, some trains contain a women only car per train. But, some men take the women only cars. Though no law is regulated for such disobedience, female passengers in the women only car deal with them in different ways by regions.
In Kanto, if you enter the women only cars, you'll be gazed by almost all the surroundings or demanded to leave the car. In some cases, invading men have quarrel or fight with women in the car.
In Kansai, on the contrary to the sittuation in Kanto, invading men are seldom blamed. Moreover, my friend didn't know that operation of women only cars in JR West were expanded from rush hours to all the days. This is because he is so ignorant of the existence of women only cars that he often take women only cars. My acquaintance discussed the cause of this phenomenon may be attributed to neat and cold character of the people in Kanto.
When considering the original purpose of establishing women only cars, I think men should be allowed to take women only cars unless the cars are crowded.
