My 2.5 year old is very physically able and very flexible. She can do things like forwards rolls and putting her feet up over a bar that she is swinging from. She does these things all by herself and mostly I just let her because she is usually quite sensible and doesn't jump unless she can land safely for example. However, recently she has been trying to do headstands and almost managed one in her cotbed this evening. I'm quite worried she will hurt her neck because it won't be strong enough? She does put her hands down too and her arms are strong. Anyone know anything about this? Thanks