The robins can probably be understood as Batman's adoptive sons, but I'm not sure the same can be said of Huntress.<br/><br/>As far as Batgirl goes, she already has a family out of costume and joined the bat family because she wanted to, and because she was already in the bat circle as the daughter of commissioner Gordon. Not to mention Dick's girlfriend.<br/><br/>Now how much of that would Aqualad know, that's the question. I'm not sure how much any member of the Young Justice League would know about each other's real identity.