Tokyo Metro Poster

I have seen this poster many times. The first time I saw it, I thought the things written on the poster was perfectly natural. Why did they need to make this type of poster? Women don't want to put make up on the train, they're just using time wisely. Drunk people don't want to barf in the train or sleep on the seats, they just don't feel well. Of course, it doesn't feel good looking at people throwing up, but they can't help it. Is it only me who think this way?