May be something related to child resistant packaging. From the CPSC FAQ on the Poison Prevention Packaging ACT “For a package to be child-resistant, at least 85% of tested children must not be able to open the package during the first 5 minutes of the test”.https://www.cpsc.gov/FAQ/PPPA
There is considerable overlap between the intelligence of the smartest bears and the dumbest tourists (in reference to why the Yosemite garbage cans are difficult to use)
Worked in Yellowstone.
The bears are smarter than the majority of tourists.
Humans, being able to read and having signs posted in multiple languages for them, choose to ignore the various hazards and blunder through them.
Bears, only rarely, if ever, find themselves in trouble with natural features. And they can’t read the warning signs.
