[ezst]

For me it's the AF. Every. Single. Time. People on smartphone, used to near-infinite depth of field, just forgot/never learned about focusing, and handing them a camera just too often results with the background being in focus and the subject blurry.

[Karrot_Kream]

Yeah that's been my experience too, or if the lens is open wide enough they don't watch the AF and have it focus on a belt or something weird and then blur out faces and eyes.

The other big one is HDR. HDR on phones makes lighting a lot less of a factor but a lot of times if I'm asking a friend to take an indoor picture they underexpose the shot because they don't have good lighting.