Earlier quoted context omitted.
> "It's only one block away" and "most homeless people are harmless" would never be words of consolation in case of any calamity. This is extremist thinking and frankly quite useless without considering the actual level of risk involved.
Of course it is extremist thinking! We are talking about the survival of your own children, not some utility maximization function. Imagine a game of Russian Roulette with one bullet in a gigantic chamber (N slots) where you get to win a small prize every time the gun doesn't fire. Is there any sense in asking if there is a N large enough to make you consider playing this game consistently for 2-3 years, when the gun…
Extremist thinking does not improve the likelihood of your children's survival.
> Imagine a game of Russian Roulette with one bullet in a gigantic chamber (N slots) where you get to win a small prize every time the gun doesn't fire. Is there any sense in asking if there is a N large enough to make you consider playing this game consistently for 2-3 years, when the gun is pointed at your kids?
You do this all the time when you take your kids for a drive, on a plane, outside, when you feed them, etc. Hell in your supermarket example, someone inside the store could just kill them there after you dropped them off.