The key difference between our arguments is that:
* I believe publicly funded facilities and communities can safely engage and interact with each other assuming you weigh the benefits and risks.
* You don't see the opportunity and value for a publicly funded facility to serve multiple purposes. Or if you do, you overly emphasize safety.
My community likely can not afford to build a new track. We barely have any parks. I believe it is in the public's best interest to have reasonable access to these facilities. In the summer, they leave it open much more, and if you show up on any day, you'll see people from all walks of life using it. We know this can safely and reasonably extended to before and after school hours, and in lots of communities even during school hours. Another example of how this makes no sense. They lock up the track where I live, but no one ever bats an eye if you're on their un-gated grass practice fields.
In regards to safety:
* If there are 40 people using a track during school hours, I do understand the issue
* Show me a track anywhere where there's more than a handful of people during school hours using a track. Even at my HS, which was open 24/7, it would be just a few people.
* The danger of someone being in direct communication and close proximity to students is way higher than someone jogging some laps hundreds of meters away from kids.
* It's not weird for adults to be in proximity of children. I can go to the library and be surrounded by children.
As a followup to reading "This is Water," I suggest reading "The Coddling of the American Mind." It's largely about the culture of higher education student bodies in America, but it discusses this overemphasis on "safety" that's prevalent today. I believe you would benefit form reading it.