I really think there is a step all children who are not in vegan families go through when they learn food items they eat are from animals killed for those items being available for their food. They have to accept that, adjusting values with the propaganda which comes with it, or making the bold step to say they don't want those things from animals anymore. Those who continue beyond that step having things from animals still grow harder and harder against feeling anything for it. Most won't go vegan beyond a time in their youth. I was very much an exception from that becoming vegan much older, but I was not as hardened but very misled with wrong information. And with seeing all the powerful information that is reason to not use animals, I was more certain to tell others there are those reasons, knowing there are no such strong reasons to keep having things from animals being used.