How many places have public transit systems used by older people, and how many have accomplished this by policing the antisocial behavior away? It seems like it

How many places have public transit systems used by older people, and how many have accomplished this by policing the antisocial behavior away? It seems like it is at least as easy to get older people to use public transit where they might see people with mental illness and addiction than it is to keep mental illness and addiction off of public transit. In countries that value civil liberties it is probably easier. As you observed, fear is driven by perceptions and rare incidents of violence covered in the media, not by statistics, and you can't pull somebody out of a bus or a subway car because they contribute to somebody's fear. You can arrest and remove a person who shits on the floor or threatens somebody, but for every one person like that, there are twenty people who are obviously in bad shape, obviously suffering, and look like they might do something alarming at any moment. You can't arrest and remove those people. You can get people to ride public transit despite the odds of seeing people like that.