One of the dialogue options was to ask what he meant by Mum and Dad. Maybe that’s because Lae'zel doesn’t understand goblin society and we can get some insight on how it works? Maybe her culture doesn’t have the concept of parents and she learns about it from this goblin child. If it’s just the later, it might be a bit weird. It could also be a bit of both, but that makes me think of possibilities I dare not hope for.
Well, Githyanki reproduced by laying eggs and does not acknowledge families as such, so maybe Lae`zel does not have much experience with creatures outside the Astral plane and does not understand the concept.
"Githyanki society had a martial and meritocratic structure, with no regard for blood ties, and with both males and females training heavily in magic and combat. Although they were loyal to each other, they were also fiercely individualistic. Githyanki becomes an adult killing a Mindflayer or raiding one of their bulwarks"
The orphan child seemed a bit odd though. That implies they have family units and perhaps monogamous relationships. There are real life human societies (not so many now) where children are raised by the tribe as a whole, and I would properly have based a Goblin tribe more on that model if I was writing it.
As I said before it´s canon that goblins fiercely protect his children and fertile females with lots of children have higher status because goblins give great importance to having high numbers in their tribes so It would not be strange that they have the concepts of "Mum" and "Dad".
If having lots of children gives you status, you want the others of the tribe to know that you have a lot of children so it´s important that your kids know you´re his mother and tell that to the others.
