Why can't I press both my touch controls at the same time?

foreach (Touch touch in Input.touches){
if(leftBounds.Contains(touch.position)){

                GameManager.left_touch_count ++;
            }
 
            if(rightBounds.Contains(touch.position)){
 
                GameManager.right_touch_count ++;
            }
}

So this works when I hold the left side of the screen, the left_touch_count goes up, but if I keep it held down then hold down the right side, the right_touch_count does not go up. Same thing vise versa.

http://unity3d.com/learn/tutorials/modules/beginner/platform-specific/multitouch-input

Check out that, and make sure you have MultiTouch flag enabled, I forget the exact syntax sorry.