In CA even Doug's little Altoid tin knife is illegal to carry in your pocket or around your neck inside your shirt.

But now it appears okay to carry in your backpack in CA.

When I was a young scout, there weren't locking folders (at least cheap ones) so
sheath knives were considered safer to use than pocket knives. Now fixed blades are discouraged if not quite banned from scouting. And in our troop you have to pass a 2 1/2 hour class on knife, axe and saw safety and sharpening to get the tote'n-chip. The scout master first hits the blade of the axe against a rock, then the
scout has to return it to shaving sharp. We wear out a lot of axe heads by sharpening.