pass each other
Examples
No one feels another's grief, no one understands another's joy. People imagine they can reach one another. In reality they only pass each other by.
The thickness of the walls should be sufficient for two armed men to pass each other with ease.
Because our lives are cowardly and sly, Because we do not dare to take or give, Because we scowl and pass each other by, We do not live; we do not dare to live.
Even in motocross, you're struggling to see people pass each other anymore. There seems to be one line in motocross.