ok, I did the google man-on-street walk around the entire rear yard (playground) of the school. Sheesk I wish our school had fences that were that short! A guy my height (6' 4") can practically step over that one. And I do see several walk in gates, but the resolution/zoom isn't refined enough to allow zoom enough to see if they're gates that a person can walk right through (ie.: simply swung shut, or actually shackled/chained or not). And I see ample places of grass that are not within the fences anyhow.
Clad dog indicates that the schools there ("some" anyhow) have access entrances. However, he laments that they have signs about trespassing, school-use-only, visitors check in at office, blah blah blah. So too do all the schools here have such signs. But they're there so they can boot perverts, or someone being a nuisance, etc.. I mean, SO TOO do shopping centers have similar signs at their entrances: "private property, blah blah" (in the brass plaque or sign on the light-post that no one ever reads).
Sure, for any of us who just helps ourselves to school yards after hours, there's no gaurantee that someone might not get their panties in a wad. Oh well. You run that risk at the most innocuous of sandboxes. Heck, I even had a lady on the beach tell me my detector was bothering her dog! Oh well, you're right: stick to places that don't have any such signs or fences.
As for a case of "teens arrested for trespassing at a school", my hunch tells me those teens were doing something amiss. Vandalizing something, entering buildings, etc..... I mean, let's face it: they weren't playing frisbee or flying kites on the lawn. Had they been doing something innocuous like that, I bet no one would ever have given them a second glance.
Thats a great article Tab...really says it all...boys get in trouble, teachers used to be able to keep them in line...moms will be moms!