The zipline sounds AWESOME! When we moved from Alaska to Washington, the new school my brother went to didn't have any playground equipment, only gravel. Eventually they put in some, after he suggested it. Nothing particularly dangerous, but wilder than those people who were putting in nothing but bridges, I guess!
I don't know that I'd support a measure banning wolf dogs, but I think for a tame wolf or a high content hybrid some regulations like "have a pen this high providing this much room" makes sense. I don't know where you'd draw the line at content percent . . . I guess I'd leave that to wolf / wolf-dog experts. Of course, there's always a chance you'll have a high content wolf-dog that acts very "doggy" . . . It's the genetic lottery, the same way that any given labradoodle may or may not shed.
But my understanding is that
most of them have at least some wolfish traits that make them very much unlike a dog to live with and raise.
Here's an article from WolfPark.org called
So You Think You Want a Wolf? which is really eye-opening . . . The line that impressed me the most was:
It is not fair to the animal to get it, have problems with it, then kill it for doing what wolves can do.
If people want a wolf-dog, they need to understand the worst case scenario (that they might end up with a very wolfy animal who cannot be kept in the house and can't safely be around humans) and who understand what to do in order to try for the best case scenario (an animal that can live in the house and interact appropriately with humans. Maybe people should have to take some sort of test.
Content is determined on a purely mathematical basis. If you breed a wolf and a dog, you have a 50% wolf hybrid. If you breed the 50% hybrid to a wolf, you have a 75% hybrid. If you breed the 50% hybrid to a dog, you have a 25% hybrid.