Twins die in paddling pool at Castres

Two 18 month old twins have died after drowning in a paddling pool filled with only 50cms of water. According to the Connexion where I saw the story in the last two months paramedics have been called to 409 cases to assist water related accidents. In this period 172 people died from drowning including 5 infants under the age of six. Am I being foolhardy suggesting wild swimming in rivers ?  Please do any water related activity  with care.