alt Hacker NewsOf the three you mention, only one is the law in every public land place I've hiked.[1]
Staying on the trail is mostly a suggestion for your safety (and to preserve the area) - definitely not a law.
Ditto for loudspeakers. People often go into nature and throw concerts.
[1] OK - trails in state parks and perhaps some national parks likely have more rules. But trails in general public lands (BLM, forest, etc)? Not many.
This is willful misreading. They specifically also said “social norms”.
This “it’s not technically illegal so it’s not a problem” sentiment is unhealthy for civil societies. I for one would like basic social norms to be respected without law-enforcement being involved.