But there is in New York City.
Last year, New York cops issued tickets to 7,373 riders for putting their feet or bags on seats, or for simply bagging out across three seats. The tickets carry a $50 fine.
New York police say focusing on these petty "crimes" help keep the subway safer. That's the "broken windows" theory of policing. From Wikipedia:
The broken windows theory was first introduced by social scientists James Q. Wilson and George L. Kelling, in an article titled "Broken Windows" and which appeared in the March 1982 edition of The Atlantic Monthly. The title comes from the following example:
Consider a building with a few broken windows. If the windows are not repaired, the tendency is for vandals to break a few more windows. Eventually, they may even break into the building, and if it's unoccupied, perhaps become squatters or light fires inside. Or consider a sidewalk. Some litter accumulates. Soon, more litter accumulates. Eventually, people even start leaving bags of trash from take-out restaurants there or breaking into cars.
It's actually a good theory that has worked in many cities. But would it work on the CTA? What do you think?