Usually, I have at least one close relative buried there, and I do stop by the grave briefly. But a few times I have been in some cemetery where I don't "know" anybody.
So far - I've heard no complaints. I'm careful to never venture near a burial service. I don't run on grass. I yield the right of way. You don't want to intrude on grief.
Most of the time these place are empty.
The names of the ghosts flash by as I jog -
hopelessly far, but whispering close.