For most girls, bars is the last thing to come in. There are so many reasons why, that I am not going to list them here. My child struggled with that demon of a skill for months on end, and honestly her first year competing it, it was very ugly. In her opinion, that skill still needs work and she is an upper level optional now. I do not know how your gym works but (I just posted this on another thread) for many gyms out there no kip means no level four. If you do not know how her gym handles this, it might be good to find out, so you can be ready to help your child in case she doesn’t pull it off. The kip is not something that can be rushed or forced. It comes when the athlete is ready, and truly is on an individual basis. She does still have time. The big thing is for her to make sure she is still having fun, and not stressing about getting a skill at six years old. If the coaches do decide to keep her a 3, she can always compete the kip in that level once she gets it, so there is no risk of not uptraining. Good luck to her!