In part because a large fraction are bullshit.
I have seen boxes with 'Open carefully, do not use a knife' on the outer box when there was another set of cardboard boxes inside protecting the product. Oh yeah, real glad I didn't cut the tape with my blade that's not long enough to fully cut even one layer of cardboard.
I have also seen a label "delicate product, fold carefully" on fucking denim jackets.
When everything is 'fragile' nothing is. If you won't pay for a packaging engineer then pay for actual special handling.
Conservatives rarely are controlling appointments to city public planning positions and there are only so many levers they can pull federally to make urban planning worse.