I took my extended family with four grandchildren on a trip this past June. Reflecting on this experience, I can wholeheartedly agree that the young children must wear life vests when underway, unless in their cabins or the main salon area with an adult. I would be concerned that having netting would lead to the adults becoming complacent and less watchful, a potentially bad combination. Nothing replaces the mantra that everyone should be taught one hand for themselves, one hand for the boat. If the kids have any issue with sea motion, the best place is outside in the cockpit getting plenty of fresh air.