I wouldn't show that to school children as it depicts highly graphic torture and abuse of animals, which can be traumatizing. I actually recall a time in school, where a student showed a video about fur farms and it showed the minks being skinned alive. Even our teacher, who was a vegan animal rights activist, couldn't stomach it and stood in the hall during it. I don't think pushing ideological veganism is the right way to go, either. But we should teach children to respect all life, regardless of if they eat meat or not. That said, I mostly agree with you.