Just was out training the eye -- this was a Leica M with a 24mm ..
I hope it's your kid - I wouldn't want to think about doing shots in this genre in today's world. I'm not for a moment questioning your motives, just remarking that photographers already are two strikes down in the public's consciousness. I'd leave kids, schools and all playgrounds well alone.
My son's ex-girlfriend's sister had left him to babysit - take the child for a walk - and he'd taken her to their local park. The kid was up a slide and he wanted her to come down and go home; she wouldn't, and then somebody told her to do as her Dad had said. She replied that he wasn't her Dad, which was the truth, but he had a helluva time explaining. And he isn't even into cameras.
Rob C