I'm not too sure. I always tend to "feel bad" for animals that are used for human enjoyment...hahaha I know that sounds funny. Like circuses, horse racing, dog racing, horse carriages in down town Philly, and I can go onnn. A lot (not all) of times the animals are mistreated and not cared for properly. BUTTTT I am working on getting over that and I have to remember that not all people or places abuse the animals. I've gone horse back riding and the horses lived like kings, and I've also gone (in Cabo actually) and I wanted to cry when I saw how the horses looked (cuts, skinny, hand shy, standing on beach in steaminghot weather with no shade) Another time they had dolphins and (to me) didnt look healthy, and they didnt have much room. But again, I'm not going to say not to do it, because it def depends on where you go.
**Do research before you book anything thats all you can really do. I personally won't do things like that anymore unless I know for sure they aren't mistreated. Hope that helps )