Yes, the process of taming pets in IT was horrible. Mostly because I think you had to kill elephants for the tame skill (?) and so EVERYONE was like "OMG YOU JERK DON'T KILL /MY/ ELEPHANT" and you had to kill like, 30 elephants to get enough tame skill uses to catch like, one bunny. ;_;
However... if we could manage to come up with a good system to catch and keep pets, I might go for that. But I would only want certain animals to become pets... smaller animals like rabbits or rats or .. a ferret or something. I remember when people on IT had that "Nightmare" Halloween special horse as pets :/ Also, I think only one pet per person? If you want another pet, you will have to get rid of the old one, before you can begin to catch a new one.