Board Thread:Theories and Rumors/@comment-31425337-20180224170113/@comment-34367497-20180303153433

He guessed, so he wasn't sure. Plus he wrote that Ninja are in their late teens, but

16 at least during pilot

S6 and DotD 3-4 years after, still late teens, so they had to be 19

S8 year later, so they are 20  - not teens anymore

Well, Ninjago timeline isn't a masterpiece of thought screenwriting, so we shouldn't worry about this so much. If she would be younger than 13 she wouldn't have full-sized legs. I believe 14 in that case, but I may be wrong