I have this same problem with my new puppy. He goes in our yard perfectly fine, front or back, but won’t go anywhere else. He’s not gone on any walks yet, as I think he doesn’t need them at his age, and we have tons of coyotes in my neighborhood, some of which have tested positive for parvo. At 11 weeks, he is not fully vaccinated.
That said, I do take him for some sort of trip outside the home everyday. We’ve been to Home Depot, Cabela’s, a skate park, our local grocery store, lots of places. He will not go anywhere other than my yard. Last time I took him out, we were gone from the house for two hours, and he held it the whole time. Another time we were gone for about an hour, and he peed in the car on the trip home. He’ll pee in the car, but not in the grass outside a store! What a goof.
Forrest 9/1/2016 - 5/14/2017 RIP
UFO vom Wildhaus "Archer" 4/30/19
Brooklyn - Golden retriever 1/30/11