I'll admit it: laziness. I don't have a smartphone or the account that goes with it; I just cannot afford it. Since my cancer means I have left the house exactly 6 times in the last year, all with my wife since I don't have a car and can't drive, and all to the hospital, I can't justify buying a smartphone and dropping $100/month on the account, which in talking with people around here is the average figure they spend.
That leaves me with setting up the modeling lights, breaking out the 35mm and a lens, taking test shots to get everything focused and framed, then taking the shots and uploading them to the computer. Since I'm stupid, I probably still have the camera set to take the photos as full size RAW images from the last time I used it. Now the photos get imported into Lightroom, settings applied, reviewed, sized, and jpgs are made.
Suddenly I have an hour or two invested in taking that simple picture.
Oh, that's assuming that my body holds out, and I don't have to make about 37 trips to the bathroom in that duration; that all the batteries (camera, remote, etc) are charged; that I have all the cables, etc., needed; that nothing else goes wrong.
Then comes the Internet itself. There is one ISP in the sticks here; they increased my upload speed to a whopping 768 kbs (hey, I only spend $150/month on their service), so assuming that the Internet is up, and that my wife is not streaming something - usually a picture of an hourglass - I can start to upload those pics. That's the real fun; there's nothing like the feeling that comes with the error message "Upload 99% complete...now aborting" on the screen about 10 times to make your day just short of perfect.
So, laziness will win.