I had in mind 7 to 12 yrs old. Although this would vary depending on the child, conditions and level of supervision.
We had children as young as 7 or 8 on the Surfcats and this was usually their first boat. The mast was 3 ft taller with 20ft more sail area.
Regards, Phill
I know that the voices in my head aint real, but they have some pretty good ideas. There is no such thing as a quick fix and I've never had free lunch!