You say groping is quite widespread. I am not going to argue because there is surely some improvement to be made there. But context is important. Daily ridersh

You say groping is quite widespread. I am not going to argue because there is surely some improvement to be made there. But context is important. Daily ridership of all Tokyo rail lines is around 40 million. So, assume reported groping cases are around twenty per day (this is a ballpark estimate I don't know the actual number). And say only one in fifty of actual cases are reported, that gives us 1000 actual gropings per day. So we have around 0.00025% of rides affected. Again, it's not nothing and it should be better, but I wouldn't want people to get the impression that there is a high statistical likelihood of being groped when riding the rails in Tokyo.