Board Thread:Speculation House/@comment-68.186.83.101-20130601225528/@comment-4010415-20160120173218

I assume that you're not close to your brother's dad's family because you don't spend a whole hell of a lot of time around them.

But Qrow seems like he has spent a ton of time with Ruby and Yang whenever he's not on a mission. I imagine that, after Summer died, Qrow started hanging out at Taiyang's house a lot more and helped take care of Ruby and Yang, since Taiyang went into a deep depression. He might have even spent a lot of time playing with them, watching TV with them, and taking them out to fun places, to distract them from how depressed Taiyang was, so Taiyang's emotional state wouldn't affect them too much.

A parent's depression can affect their children, especially if the depressed parent is the only adult in the house taking care of the kids.