How Can Learning Effect Human Behavior?

Well, its a simple thing that is normal and natural. See, if you know that the path you're going to take to somewhere is not safe at night, and there are alternate ways to go to that place, you will surely not take that unsafe path.. And will take the other road... Its all about self realization.. That's it.. Ask yourself what learning have made you do better or wrong things in life and you will have your own answer...

It depends on how you used new things you learn.. Behavior is more affected by how a person judge things...

Yes, Suppose you have never taken care of a newborn. Of course, some things are instint, but things like vaccinations, serious illnesses that may be hard to detect, such as appendicitis, or small seizures are usually taught to us. Same thing, what would you do if your baby had a very high fever? What brings it down the fastest?  
Learning also makes us more secure and safer at times. For example, what if no one taught you how to drive a car, or swim, or put out a grease fire.