Timbo,
The wifal unit "trained" me to never force anything on our three sons. I worked diligently to rebuild our H16 and take them to the lake the summer they were 10, 11 & 13 years old (IMHO a cat can be intimidating to a child at this age). After a few trips they quickly tired of the drive out, set-up/takedown, and trip home. I sold the boat to a friend. Now that they're 19, 21 & 22 they enjoy sailing, they have to decide which of many friends they will invite. Be patient, it may come full circle.