A major reason is that most people lack the basic skill required for marine sports: the ability to swim. It also seems that most people lack the confidence that they can master swimming, or that it is worthwhile spending the money to learn how.
原因是許多民眾缺乏從事水上活動的基本技能──游泳，也不認為自己有能力去學，或值得花一筆錢去學。