No matter what sort of work you do, at some point you end up needing a sharp edge. I usually have a small folding knife with me for just such occasions. Sometimes, other people need the sharp edge so I lend them my knife. Now, they can open it fore sure, but almost everyone is confused on how to close the knife.
I even had one co-worker who ended up disassembling my knife trying to figure out how to close the darn thing!
It’s just a skill people seem to not have and they should as it’s a very popular design.
I have included a link to a video which illustrates how to close a knife. The video is not mine.
This is true, everyone has an option, however education is helpful. The more people that understand how things work, the less likely they are to hurt themselves if they encounter it.