I can honestly say that I end up using mine almost every day, sometimes I will go several days without using it but that is unusual. For starters, I love sharp cheddar cheese, and use my pocket knife to cut a couple of slices off to take to work for lunch every day. When I make a salad, I use it to cut up my veggies, and then when I go to eat it at work I use it to cut up my tomatoes. I use it to cut up fruit (to prevent any surprises) I use it opening envelopes, opening Amazon packages, cutting loose strings off my clothes, cutting up cardboard, cutting pallet straps, opening boxes and packages of parts, etc.
I will admit that I have a Milwaukee Fastback utility knife with the bit driver that gets used for most rougher stuff at work these days, keeps my pocket knife sharp for food prep and other stuff.
Every time you buy something, you have to cut those stupid tags and zip ties off everything, and then you have the plastic clamshell packaging. My wife just yesterday brought me a clamshell pack with a new curling iron she just bought so I could slice that demon packaging open for her.
I just went a few minutes ago and got a new package of napkins and was going to open it to put some in the napkin holder at supper. I guess I COULD just rip the plastic packaging open like a barbarian, but I find it is easier, neater, and more fun to slice that bad boy open with my knife on one edge and pull out the amount I need. I work in the radio room at my church, and we get packages of CD's with the film wrapped around the package, the 9 volt batteries we buy from Amazon come individually wrapped in a clear plastic that I score with a knife so I can easily remove it.
These are just the EDC tasks, I haven't even gotten into home projects like working on the vehicles, lawn mowers, opening bags of seed, fertilizer, etc. for yard work. Not to mention the therapeutic practice of taking a stick and slowly making it smaller by shaving little pieces away
I could go on and on...
I guess I really wouldn't NEED to use my pocket knife for a lot of these tasks. I could go to the drawer to grab a kitchen knife or use some alternate tool for a lot of these things, but it is so convenient and fun to use that razor sharp blade that is right in your pocket, and I get happiness from putting it to good use
