There is some evidence that she's more aggressive in the manga; we've seen one frame in which she chases him carrying a baseball bat, though it doesn't show her hit him with it."Maybe not true..definitely understandable." There is one scene of Minamino Shuuichi in school being approached by two girls, but there is no overt flirting, nor are there any indications that he is followed by girls at any point.When you come down to it, he might have been too rebellious as a child to notice.) As a matter of fact, no other youko are ever shown or mentioned.It's true that, in the manga, Yuusuke is seen selling ramen.As for wanting grandchildren, though it's no doubt a quality of mothers everywhere, she doesn't bring up the subject in the few instances we see them converse.
Unless this is from Japanese myth in general, the only possible justification for this assumption in the series is that Hiei has fangs--but so does Shizuru!She is never interested in training the others, and after giving Yuusuke her powers during the Ankoku Bujutsukai, she no longer teaches him.Arrogance, anger, shock, concern, amusement, pride, pain, terror, glee... We know that the two are close and that Shiori likes to keep in touch, since she calls her son while she's on her honeymoon to see how things are going.
However, by the series' end we haven't been shown Kurama's family interaction after he strikes out on his own.It's all there to read openly on his face, at one time or another.