The average person would likely not shoot photos. The only reason that they do shoot photos is because they can do so with a camera phone that they carry in their pocket mainly for other reasons. I, too, carry a smart phone, but use it for photos only in situations where I absolutely need to take a photo and do not have one of my real cameras with me (fairly rare occasions). As has been expressed previously in this thread, the camera ap in smart phones is convenient since, if you need a "cell" phone (as most of us now do), you have it with you most of the time. The downside is its lack of flexibility. No photographer would put up with the tedious nature of making manual adjustments to a cell phone. A good follow-up question to that posed in this thread might be to query smart phone shooters as to how many photos they take where they make manual adjustments (other than switching between front and back facing lens). I would guess the affirmative response would be less than 1%.
Smartphone cameras are capable of capturing some amazingly humbling images, but they will not soon compete with real cameras (SLRs, DSLRs, and other more recent dedicated camera incarnations).
Respectfully,
Caruso