Yeah. A free society will always have a percentage of the population who do dumb and potentially lethal things, and a percentage of those will get injured or killed because of their own stupidity.
Bu that doesn't mean the answer is to ban everything potentially dangerous. All kinds of activities nowadays (from everyday things like driving to extreme sports) carry a large degree of risk. The answer is simply to accept that freedom to make your own choices means freedom to screw up, and accept that if you're not hurting someone else, then it's your responsibility to stay safe and society won't stop you.
those who learn by reading
those who learn by observing others
but that third group just _has_ to go and pee on that electric fence.
We can't optimize society to coddle the fence-micturators 100% of the time, unfortunately. Solutions to that problem "don't scale", or get terribly fascist in a hurry.