As a young boy I too was taught how to kill rabbits and poultry by my grandparents.
As a city boy I was chasing my screaming village nephews with a rabbit eye all over the grounds.
I've spent few summers around cowhouse and young calfs, "helping" my aunt take care of them.
I've killed and cleaned few fish for christmas.
The animals I watched killed were living good life and there was no suffering at the end.
So I always had an image in my mind of animals living in green fields, and then miraculously and humanly killed in an instant.
But I've never been around slaughterhouse or in a highly industrialized meat production facility. Even now many people in cities don't know where milk comes from (yes, they know it's from cows, but they don't know that you have to artificially inseminate the cow and take away the calves, and they never heard them crying for days).
The amount of suffering, brutality and aggression of slaughterhouse staff, the supposedly human ways of killing our food, the long, painful and stressful process of killing, the amount of screaming of distressed animals, skinning of alive animals - documented in the Dominion (2018) movie - I was not prepared for that.
But that's not what made me vegan. I've seen it long after I've become vegan.
I'm not advocating for soylent (soylent green is people, anyhow).
But it is an argument for changing our practices, because it shows that propaganda of meat industry (happy cows & meals in burger joints, pictures of cows grazing in the fields on supermarket shelves, etc.) is just a big lie. And that we simply don't know how to kill painlessly.
Few quotes:
If you visit the killing floor of a slaughterhouse, it will brand your soul for life. [Howard Lyman]
If slaughterhouses had glass walls, everyone would be a vegetarian. [Paul McCartney]
Those who purchase meat, fur, and leather have no right to be shielded from the sights and sounds of the slaughterhouses from which these products were produced. [Peter Singer]