Telephone/Data systems installer.
In my profession, many types of cutting tools are needed. I am expected to provide my own tools. A good utility knife is mandatory, and a box cutter just ain't going to cut it (Pun intended).
Throughout the day I have to cut a variety of things from cable, Tie wraps of many sizes, (which are extremely hard and tough plastic, and can roll an edge in a second by the way), cardboard, ceiling tiles (which are extremely abrasive and rough on any edge), and sometimes shave a little wood. Also I have had to punch many holes in sheet rock. I have even had to punch a hole or two in thin sheet metal from time to time.
So the environment/profession that I work in does require me to provide my own cutting tools. I find a stout "heavy use" folder is extremely useful on a daily basis.
Do I "use my knives hard" every day? No. Most days I use my knives in a normal manner. However, I do use my knives every day, and on many occasions I have to put them to some heavy tasks.
Not everybody has an office job, some of us actually have to cut, shave, and punch holes through rather heavy materials while standing on ladders and such, and in this type of work environment, your employer does not supply your tools. You are expected to supply your own tools. It's a very diverse world out there.
By the way, I find that having to punch holes through so many different materials like I do, A strong knife with a tanto tip is very useful. I love my Emersons.
Just my two cents.