[preciousjeni]

A fourteen year old boy drowned in a lake when he fell off a make-shift raft. He was unable to swim but went out with his friends anyway.

So, I was wondering about two things.

1) Can you swim?
2) How is it that people drown because they can't swim? Meaning, it doesn't seem too terribly difficult to at least tread water - plus, we're born able to swim.