When I visited the Grand Canyon, I was shocked (and favorably impressed) in this era so much fear and panic and safety nannyism, that there were miles and miles of canyonside where anybody can walk up and just fall in.
I expected it to be fenced, guard railed, laser alarmed etc. They actually expect people to use common sense....very impressive.
Oh my gosh, we need to push for installation of nets across the canyon! /s
I remember visiting the Grand Canyon when there were a lot of thunderstorms in the area, and I thought that would spoil my family's enjoyment. Turned out it was thrilling. We would sit at various places on the rim (yes, with a steep drop below us), and watch in amazement as bolts of lightning were blazing at the opposite rim. Breathtaking and unforgettable.
The gummint doesn’t like building fences that far south. People might get ideas (like the gummmint should be building one on the border.)