Mark,
Feel free to disagree with me any time.
I agree that the autopilot tricks were dumb. We don't use autopilot on rivers, sloughs, or congested waterways and, in any event, don't leave the helm even in open seas.
I was referring to 8 year olds driving jetskis, the waterborne equivalent of a motorcycle. At that age, few kids have any road sense or water sense. When one of the grandkids, then 14 (and before the age limit was imposed) rode our jetski, my son and I hopped in a Boston Whaler and positioned ourselves so we could observe how he was riding. We pulled him over several times to explain what he should be doing differently. This was a kid who regularly rode motorcycles, albeit offroad.