But just imagine how much simpler they are to use!
You only have to press about 50 buttons to get a polaroid from those apps when using the real thing you have to exert all your energy into pulling the small paper tab that sticks out of the camera
... which then rips before you can get the photo out so oops, you just squeezed the emulsion over only half the shot, so quick, what do you do?! Keep trying to pull out the errant shot, all the while screwing it up even more (ok, this could possibly be a good effect) or tearing it in the camera, or open the back to extract it properly but then exposing all the rest of the shots in the pack? Or just leave it as-is, wait till you get home, open it in a dark bag, and hope that your fingers can figure out how to extract the torn exposure without exposing the rest? Meanwhile you are sans camera for the rest of the day
I can see why the kids prefer pressing a few buttons