Puppy is scared of walking outside because of cars
I have a 20 week old aussie puppy, and he is very scared of cars to the point where he won’t go on a walk and sometimes won’t come out of the door. He is completely fine and relaxed while he is riding in the car to go to a wooded trail or other place and will walk in these places just fine. Is this common behavior for this age and what can I do to help him through this fear so that I can walk him right outside?