She will be 8 this Sept (i scrolled to find a bday pic) so she is over 7 and a half. It really shows the parents dont give a tit. I have a cousin her age and she is cycling without stabilisers for around 2 years now and she wouldnt have been the most confident kid when it comes to stuff like that but she is flying it now. This is as much Chris's fault too. The poor kids lumped with two lazy parents.Omg this! Can’t believe Sienna is still cycling with stabilizers. how old is she now? That’ll show you how lazy her parents are- couldn’t be bothered to teach her. The poor child.