I think if more parents would explain to kids where meat comes from most would react like Indie-Rose - another little kid[0] - who said:
"I don't want to chop up animal people"
And there are so many more kids realizing on their own what they are eating. They don't want to eat Peppa the pig & friends and yet we (mostly) force them to eat them.
And there are so many more examples of these kids. They seem to instinctively understand what Einstein talked about in the last century [1] [2].
What do you think would happen if we show little kids the reality of slaughterhouses - they'd be traumatized for life and yet we feed them the products of those brutal and inhumane places.
One day we might end this barbarism - maybe a few more hundred years - as depicted in this optimistic future [3]
EDIT: Would be good to hear why you down vote this comment.
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[0] https://www.dailymail.co.uk/femail/article-3151959/Tearful-f...
[1] "Our task must be to free ourselves by widening our circle of compassion to embrace all living creatures and the whole of nature and its beauty."
[2] "Nothing will benefit human health and increase the chances for survival of life on Earth as much as the evolution to a vegetarian diet."
[3] The Dietary Requirements of a Star Fleet Officer - https://www.youtube.com/watch?v=sS7NRtEJBcA