Avatar Spinoff Series Announced

Would you feel very strongly motivated to try to self teach a form of bending that had recently gotten an entire tribe wiped out? There are other factors at play in that 100 years.

With your point I make the counter point of Katara, with the fact of the Fire nation stealing every single water bender I really doubt Katara would be like I want to learn this. So like you said in the other part of your post it's something that is awakened in the bender.

Not fully genetic or taught makes the most sense.