What kinda question is that? Seems pretty judgemental to me.

Some people are "the computer guy" for a BUNCH of people, and if your usual pocket arrangement allows them there are a bunch of tools you can use for different jobs.

It's just a different kind of pocketknife at the end of the day. I don't interact with nearly enough people to need one, but I can definitely see the possibilities.

This seems like a question that 90s people would ask. "What are you doing with your life that necessitates carrying a globally-connected supercomputer in your pocket?"

In different use cases I can see plenty of times where a bootable USB drive can mean you can use your own computer from any other machine. Which is super cool. It's gonna be a much slower version of it, obviously(because of USB read/write, but pretty cool that you can carry a full copy of your system, settings, documents, and programs than can sync to/from your regular backups. Or another with copies of other boot level tools to have on hand. If you help a bunch of people with covering from microshit to Linux, then keeping a LiveISO on hand for them to try out and install seems like a good idea to keep around.

There's just so many reasons why you would ask this. Personally I don't, but if I did I would like to think I could ask the question.

If nothing else, it's interesting to think about for sure. Now I kinda wanna imagine what kind of stuff is even possible to run like this that would be useful to me.

I only own one such at all, and I've only used it a very few times. Once to install my own OS, once to install a different one I leave at my brother's house because his laptop is having issues and I go over there to watch movies with him, and once to install that same one (Mint in those cases, Pop for mine) on my parent's computer.

If I find a good enough use case, I would start carrying at least one. But for now I just rewrite this one for whatever things I need at the time.

Honestly, carrying around a usb drive is generally a pretty good idea. I carry one with several ISOs so I can rescue a machine if something happens and I am unable to fix it (and also show people what modern Linux has to offer).

This is something I carry pretty much anywhere I take my computer, and would recommend to most people. Sure, I could leave it at home, but if I have to meet a deadline, I don’t want to spend the extra hour driving to my house. It’s a worst case scenario kind of thing, but it pays off considering how little effort takes.

I carry one in my bag so I can easily transfer files to our from my instructor's computers without having to fuss around with email or my Google drive account