What seems like many years ago now, all F1 standard motor racing circuits HAD to install catch fencing, to a certain height, strength and construction, in order to minimise the chance of crash debris hitting the crowds [and anyone visiting Silverstone will know how frustrating they are for photographers, but that's the price for improved safety]. Of course, even with these fences, access was need to the track, for all manner of reasons. That didn't stop 2 marshals being killed by flying debris some 10 years ago. Safety has of course improved further since, all modern F1 cars have wheel tethers, to reduce the chances of them flying off in an accident. [Funnily enough I was looking at these rather closely yesterday, but that's another story] Ditto in F2, yet only 2 years ago, Henry Surtees, another driver was killed in the freakiest of accidents by a flying wheel.
Now I know these involved people much more involved in a known dangerous sport than the actual spectators [although the Australian marshals death was accompanied by minor injuries to spectators too] but its serves to make my point.
Safety can be improved and improved further and legislated for, in any event that involves risk, but the point is, people partake and spectate partly because of the risk. Human nature dictates that and I doubt we would have many of the modern forms of transport we have now if our ancestors sat on their sofas avoiding feeding the adrenaline buzz.
Should air shows, or motorsport, or anything else that could, feasibly, cause injury or death to those that want to partake or just watch in awe be banned? Can we guarantee a toboggan wont fly off the track in to the crowd, ever? Can we be absolutely certain that a downhill skier won't lose control and scream into the hoards stood at the bottom of the run?
No, we can't, not ever.... should they be banned....NO, never! Make them as safe as possible without losing the thrill factor yes, but the need by some people to protect us from everything is what has given us a generation of kids that are overweight because they don't 'play out' any more, parents too terrified by the mass paedophile hysteria. Teach our kids that doing some stuff is fun AND dangerous and to be responsible and understand the consquences. You only get one shot at this life, you can waste it by risking RSI from over use of the TV remote if you wish, but frankly, I would rather enjoy some 'controlled' risk and have some fun doing it.
Just my thoughts...