I live in AZ and people here shave every breed of dog you could imagine. Pugs, Labs, Aussies.. When I was taking my Chow (then a pup) to a pet store, someone else heading in stated "oh, having him shaved?" with a knowing nod

Ahh...no. He's an indoor dog who lives in air conditioning, and who is kept groomed properly. He's never had an issue with the heat. Yet people ask if we're going to shave him all of the time.