it's not a bad idea, i've seen plenty of close cases in my day even by experienced rock hoppers but the new breed of hoppers, have no idea what so ever in reading the water and what attire to wear, i see it week in and week out guys turning up to a ledge with joggers on and tracksuit paints and at times knee high gum boots, for the sake of these inexperienced people its probably not a bad idea for compulsary jackets