Absolutely, it has been brought up.
Some interesting research was brought to the attention of members of the Senate committee. I've forgotten the name of the expert—perhaps Dr. Visser remembers. It was about the impact upon children who go to zoos and aquariums to observe animals and what that does to their sense of those animals. There's been some suggestion made in the research that their view of the animals becomes tainted by the fact that they see these animals in captivity versus seeing them in the wild. Dr. Visser is nodding her head, so I'm sure she's aware of the research.
The impact upon children seeing animals that are penned up and in captivity is generally not considered to be an all-that-positive view of things. There's no question that they see animals that they might not otherwise see living, but what they think of those animals afterwards is that they lose the sense of their validity as beings and part of creation.