Certainly there should be more publicity about ^cold water shock. I didn’t know about that till I joined a New Year’s Day swim.
But many children and teens ignore warnings or even worse, see them as a challenge.
They have the supreme confidence that they can cope and they won’t be in any danger.
One former headteacher used to do assemblies, warning of the dangers of electricity pylons and problems caused by the cross-currents and quicksands.
We still, over the years had occasional pupil deaths and for the luckier ones, claims that they had been rescued by the lifeboat.
Those claims always led to an assembly about the selfishness of making lifeboat crews risk their lives to save you from your own stupidity.