Think of it as learning to ride a bike. In the beginning you're looking at the handle bars, the front tire, your feet on the pedals... just to make sure you're doing everything right. Eventually you just get up and go. Looking down the road.

You'll get to that point as well. When you can go from a G to a C without thinking about it at all. You'll still look when you make position shifts, when you're playing in the open position and then you need to move to the 7th fret, you'll look, its okay.