[JumpCrisscross]

> same line of reasoning could apply to music on planes

You can’t leave a plane. And planes aren’t for recreation. I like quiet parks. But parks aren’t some natural creation, they’re entirely manmade. I’m okay with other people having different thoughts on how to recreate.

> Maybe there is an increasingly different set of norms among different generations

Older people have been complaining about kids with boomboxes and skateboards for generations.

[isthatafact]

> "But parks aren’t some natural creation, they’re entirely manmade."

? That does not at all match my experience with parks.

But besides that, I am not sure how it would support your argument.

[which]

The average park in America is only like 5-10 acres. And of that only certain areas may have playstructures / basketball courts / benches / other things that people can actually use. So sufficiently loud audio can ruin people's experience. It's obvious to anyone who's been outside in the past 10 years that "live and let live" doesn't work... if they were using heroin and nodding out would that just be another form of recreation?

Yes, and the crime spike of the 1960s started with boomers reaching 15-20. You can follow that to cookie monster pajamas in Walmart.