I think it's stupid for some random 9 year old napa valley girl to care for a goat for months so the goat can be slaughtered. That's making a goat a pet , and it's not some farm girl, so it's a super predictable outcome when the girl freaks out. It's not the same thing as going out and feeding animals 2x a day and fixing ribbon fences. I think that "lesson" and the childs age of understanding depends on the kid but I dont think you have to trick a kid into taking a goat for a pet for months then killing it to teach that lesson either for that matter. I have a 6 year old boy and he goes hunting with me now and has seen me shoot, he understands where meat comes from, that animals were put here for our use and management, ect... and I didn't even have to get him to take care of a goat for months to do it.
And you're the one who's Mr tuff guy, who's house I just wouldn't have faired well in Mr red ryder