My daughter did not start gymnastics until she was almost 8 and I think it was a good thing. She has girls in her level who have been doing gymnastic since they were 3 or 4 and I always hope that her having started a little late may keep her from burning out. It took her 2 years to get to level 5 while some of the kids who started when they were really little took 4 or 5 years (or more) to get there. Every kid "gets" skills in their own time and as long as she loves it I say let her continue.