My brother has been intentionally tripped on both the subway and buses whiling going between job sites in NYC. He’s an older white man, an usually the tripper is neither older or white. He had a bus driver call for the cops to be at the next stop. When the cops were finished, they told him just to walk away. They said the cameras on the bus and the other passengers backed his story, but the assailants story was that he called her a racial slur as he walked past her, and the cops would have to arrest both of them. So now he takes cabs.
And looks forward to retirement in Florida.