Only women's car

I think that all trains shoud have only women's car. I asked three people this question. They all agreed, because it's car is very useful for women, and isn't crowded. I think that molester descrease for this, and women can make up without reserve. But some people agree, others disagree. People say disagree think only women's car is unfair for men, because they pay some fare but only women special car. I heard this, I think it is unfair treatment , too. But...in fact the molester are increasing. If so I think men and women are dividen on all trains. Like this ... for reducing molester, I think all trains shoud have only women's car.