Meat eaters, why do YOU eat meat?

I am a STRICT vegetarian and am well on my way to vegan. Now I am doing a report about that for school and google is failing me. Why do you eat meat, why don't you think its cruel AND why do you think we came up with the idea of using animals for food in the first place?

Thanks! :)
Update: uhm i didnt thumbs down just taking your answers and working them in this thing.
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