interested

If you fall and and get a scratch there is only a small chance of getting an infection and even if you get one, you are very very likely to survive it without any trouble.
If you fall because your front wheel blocks totally and without warning you will do an endo and a very likely to get serious damage. As I said, people have been paralyzed, have broken their necks, fractured their bones requiring complex surgery etc. because of blocked front fenders. So they are totally different situations and risks. And btw. the most likely place to get a nasty staph infection is in a hospital, especially after surgery.

But please explain me why one shouldn't prevent serious accidents by designing safe products? You seem to be against that or what? I don't understand it. As I said, it really doesn't cost anything to prevent such accidents.

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Regards