Board Thread:Speculation House/@comment-24993958-20160209135716/@comment-24994749-20160227163444

Cause he was heartbroken she left? And Summer raised Yang as her own daughter, so there is no much point on telling about Raven? Also, telling kids they were "unexpected" tends to not go well (I would know.)

Also, Yang didn't discover the existence of Raven from that picture, that picture she found it while looking for more information about Raven.

We don't know how exactly the break up between Taiyang and Raven went. So we can't really know why Taiyang doesn't like to talk about it.

Also, consider Yang didn't look more like 7-8 (being generous) in her flashback, Taiyang might have originally had intention to explain the Raven thing to her when she was older. Also, Taiyang was in a pretty bad emotional state after Summer's death. It's possible talking about the woman who dumped him with a daughter would have been too painful.

And it's natural Yang doesn't take anuthing after her mother, Raven wasn't there for her to take after. Aside from the fact her physical traits are the result of genetics, which Taiyang couldn't manipulate, Yang likely trained to be a brawler cause it goes with her semblance more than Qrow's style (which was the other immediate option available).