Awrya, I don't think that was the answer he was looking for.
Kuroyukihime had been referring to all Parent-Child relations, not just her own.
Kuroyukihime was most likely referring to, like what you said, attacking them but not defeating them. Not to mention that because your Parent is more senior than you are in the game, there aren't many children who are capable of defeating their parents. No way is Crow going to beat Lotus, or Roller beating Raker. There have been exceptions (Rain and Rook come into mind. Bell could probably take Pile on too, though that's mainly because Pile has stagnated in terms of progress.), but it's the general case for many of such situations.