I believe larger shelters and professional boarding kennels can accommodate cage free areas for pets. The keys to success are a.) proper and continuous supervision by the staff; b.) safety designed furniture and floorplans to prevent injuries or fights; c.) only allowing visitors who have been screened appropriately, educated on how to behave around these dogs, and supervised by staff; and d.) only mixing dogs that are highly likely to get along and not engage in violence.
There have been tragic outcomes for dogs in cage free environments like this. Dogs have been injured and some have died. So, the welfare of the dogs is important. Add in visitors that the dogs don’t know, and even more can go wrong. Years ago, I was preparing to conduct an outdoor group dog training class. One of the staff allowed a friend to accompany her into the yard area where dogs were finishing their play time before being picked up by their owners. I sensed something was wrong, and sure enough, a dog fight broke out between two dogs that the friend was interacting with. These were dogs that had never fought before. I warned the owner the next day that only staff should be in the yard with the dogs and not strangers. Some people can put off the wrong vibe with dogs, and behave inappropriately with dogs, and trigger fights. That is what happened here.
So, do I support cage free areas in shelters or boarding facilities? Yes. Is it a good set up for all dogs? No. I like the home simulation environments of these facilities. I think that it could greatly reduce stress and help simulate a home environment for some dogs to make their stay less stressful. So… yes and no.