A recent piece from in Miller-McCune makes a case that a public school can do more than just educate its students: It also provides a possible venue, via school playgrounds and basketball courts, for nearby residents to stay active.
Now, we all know that not all public schools come with attached playgrounds, tracks, and basketball courts, swimming pools, etc.; but many do. I remember playing football and basketball at the elementary school near where I lived long after I was a student there. But, it never occurred to me until reading this piece that using the school's facilities wasn't encouraged—and it's possible that my friends and I may have been trespassing.