Even if you required a license or certificate, it's not gonna replace experience and time on the water. Most of the stupid stuff we see are from the below average group that only visit a lake a few times a year. They simply are not on the water enough to know and you aren't going to teach them "ramp rules" in a class. So if you require something, it's going to have to cover the very simple and basic stuff that can eliminate harm or death on the water. The old, "keep it simple stupid" rule MUST be applied here. The idea would be to save lives, not time on the ramp..