There's an overwhelming and abundantly clear reason they are referred to as man's best friend. I guess I was fortunate to always grow up with dogs, but I can never really understand people that don't pine for dogs. Now, I can understand not wanting the added responsibility in some situations, but the amazingness of a dog companion is one of the most mind blowing things about the whole nature of human existence. The presence of dogs through evolution legitimately made humans the way they are today and the reverse for what dogs are. It's really wild. I also don't get people that treat their dogs like humans or kids though. It's a dog, don't bring it in a restaurant.

Also lots of empirical evidence that dog owners live longer.