Does this count as P.E.?

I've wanted to share a picture of our playset for a while now. My kids love playing, reading, talking and listening to music while on it.

As I was uploading the pictures, I remembered something though. One of the weirdest homeschooling questions I've ever been asked was how my kids do P.E. because they're not in school. Who in their right mind would depend on the public school system for physical activity? It's as if physical activity is only a subject, to be taken just at times that the school dictates. Ridiculous!

We've had this Rainbow playset for a few years now. It was a gift from my mom, for the kids for Christmas and every year she buys the next attachment for it.