Board Thread:Speculation House/@comment-27151765-20151102160804/@comment-101.191.65.175-20160402100955

Ruby might have wanted Summer Rose's name to remember her mother.

We don't know Remnant's culture, but usually we call people 'uncle' if they are family friends or introduce themselves as such. Since Qrow was on Taiyang's team, they would have viewed themselves as family.