Just a quick analysis:
When we get the flashback of Keith outside of the garrison office after the fight scene we get this dialogue:
It’s interesting because Keith isn’t inherently referring to his home (as in “you can just take me back home already” suspension) he referres to it as THE home, as in “you can just take me back to the orphanage” because as we know Texas (that’s what I’m calling Keith’s dad) died, Krolia left and Keith had no one else to take care of him.
Child protective services might have showed up at Keith’s home and might have taken him (if he didn’t decided to do it himself) to an orphanage where he might have met Shiro.
Now the next thing I want to address is this:
The context for me is unclear but I believe the woman is referring to Keith being within the garrison, I was a bit perplexed at the use of the word “vouch” though so I decided to search the meaning
Now it might be weird because it doesn’t seem to link within the meaning of the sentence but I believe the script writers were aming to use a synonym of the word and I believe what best goes with it are the synonyms: support, validate and stick up for.
I believe Shiro went into an orphanage saw Keith and thought “I want to support that kid and watch him grow, he has potential” so what was the next move?
Adopting him
Shiro adopted Keith and took him under his wing, he was the only father figure left to Keith after his father died and his mother left, that’s why Keith is so smitten towards Shiro, he is his sibling, not by blood but by law. And by heart.
With this I strongly believe broganes or dad Shiro is canon.


















