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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)