Which is why all the conflict Danny struggles with about his duty to destroy the Hand and guard K'un-Lin? It doesn't work as the season goes on. Because we never see any significant backstory about his training in the mystic city... nothing to make us care for the warrior monks... and what we do hear makes them sound crazy and possibly evil themselves. Why does the city need protecting? Why is the city so important if it just shows up once every 15 years and has no real interaction with Earth? Are they really abusing the kids?
The Netflix audience knows the Hand are evil, but they know nothing about K'un-Lun... and this show paints K'un-Lun as a city of arrogant man-children. Which makes it seem like Danny would be retarded to ever consider going back to them.