Exactly what have I done wrong though? 

pic.twitter.com/qDWGTfvlqF
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Thanks for reaching out. Live streaming ability on your channel can be disabled for many reasons. Here's our Help Center article about live streaming restrictions & what you can do to enable it: https://yt.be/help/gok2 . Hope this helps.
a freshly churned butter fistfight (srsly knowing youtube that's probably work better, lol)
...stream on Twitch? I honestly don't know
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