If she is keen to lean to fly I do not see any problems she may need some support for the transmitter in the form of a neck strap or tray her hands may not be big enough to reach around to use thumbs on top of the sticks the main thing at that age is that she learns because she wants to and not be pushed into it some of the top pattern flyers learnt to fly at a very young age I think that Chip Hyde was about 5 when he started to fly pattern

John