Last year I had the track to myself 90% of my runs.
Only 10% of the time was the track "busy."
1/3 of the "busy" times adults were walking the outer lanes,
and 2/3 of the time kids were horsing around on it.
Now it is reverse. 90% of the time someone else is on the track.
Few unaccompanied kids. Mostly adults, or adults with kids.
Though there does seem to be two organized groups.
A group that seems like a coach and half a dozen track members
doing 200m to 1600m workouts.
And a coach/parent and older boys who throw the football around.
When there is somebody on the football field or using the inner lanes
I run in the outer lane and credit myself with 453 meters per lap.