Take Heart!
From Christian Vegetarian Association (CVA)

Children and morality

What do vegetarian children seem to have in common that non-vegetarian children donít seem to have? Moral reasons around what they eat.

In a research study involving 45 children ages six to ten (a mix of vegetarians from vegetarian homes, vegetarians from meat-eating homes, and non-vegetarians) Harvard Graduate School of Education doctoral student Karen Hussar has found that for most of the children who became vegetarian, the decision had more to do with morals (e.g., empathy) than with personal choice (e.g., food preference or health). Another very interesting finding is that vegetarian children do not seem to judge as bad those children who chose to eat meat; however, they judge harshly those children who once refrained from eating animals and later broke their commitment.

Read more at Animal Issues