I disagree. I think the best live to retrieve, not to live in a kennel.The assumption here is the dog would know the difference and that it doesn't enjoy being at the office it's whole life. A little anthropomorphic on your part.
The very best are bred and live for being at the office.
The bond between handler and dog is important in performance. I trained for decades with Cherylon Loveland and watched hundreds of young dogs come in over the years.
You could immediately tell the difference between a dog that had been raised in the home and a dog that had been raised in a kennel. The latter were always behind, slightly (sometimes significantly) fearful, and lacked trust.
Now, once that trust is established, the dog can live in a kennel, I suppose. But, that's not for me.
When I go south to train, the dogs come into my AirBnB, Hotel room, etc. The same is true when I travel to field trials. I want them to be able to stretch out and relax. That's me, I do this because I love the time with the dogs, training, competing, and hanging out.