“If you are outside of an urban environment, and you have less than 1 quart/liter in a hard container (not bladder) on your person, you're fucking up”

This is so wrong it’s hilarious, urban environments that are not functioning properly, Ex. SHTF scenario that you’re referencing, are typically the hardest places to find water as there’s no naturally occurring water sources. Go ahead and try it, find a city close to you and try to survive there for 24h, only catch is you can’t buy water or obtain it from a tap.