Peace As long as you want the camera to always stay centered on the player, this will work. If you ever need the camera to be somewhere else, you would need to do something more complicated to manage the camera. e.g. some side-scroller games will have the camera lag behind the player by a second or so.
It might be better to make the UI touch controls a child of the camera, rather than the player. Then the ui will stay in sync with the camera, even if you move the camera off the player.
