[a_t48]

Even knowing how those things work, it might not be viable if you're in a large city.

[AndrewKemendo]

Which is why you make plans for how to leave the city and go to someplace safe.

You would work with your friends and family on that kind of disaster preparedness exercise.

This is extremely common to the point where literally anyone can become CERT trained

https://www.fema.gov/emergency-managers/individuals-communit...

[dooglius]

> how to build shelter, what things I can eat, how to catch stuff, make tools, etc...

None of GP's examples appear to be covered by that training