I'm a light user and hobbyist.
I carry some sort of light everywhere I go, but it is typically a Photon Freedom Microlight on my key chain. I use that every single night when I come home, to light my path from the driveway to the house. But that is only about a minute or two per day.
Other uses might be midnight trips to the bathroom or kitchen, or to see why the dog is barking outside.
I may use my other lights for these things, instead of my Photon Microlight.
On outdoor trips, or if I am going away for any extended period, I will bring one of my more powerful lights, and some spare batteries. On special occasions, or sometimes if I just feel like it, I will carry one of my more powerful lights, just because I want to.