she'll learn when she's ready. I learned when I was 9 and I think Knot's son was even older. REALLY older.

how I learned:
my father showed up with a brand new big bike for me. It didn't have training wheels.
He rode it in a circle and he said "you do it" and I got on and rode it.
It was so wonderful, like flying. Before that day I was afraid to try and very resistant.

good luck