Yes, far more than the average person - vehicle, car camping, backcountry, kayak, etc. I take my phone as a camera (still/video), for an extra map option with GPS, and for reading e-books or editing photos at night in the tent.
Many people take their phone with them when camping. Even if there's some desire to "disconnect" (which not everyone has), people still want 1) a device for emergency calls, 2) a camera, and 3) a map.