It's in our nature to take the simplest things for granted.

Water was upstream of my biggest issue, so it's fair to say yes.

I have a deep well over some of the best ground water in the world, but a well pump takes a lot of on-demand energy. I have a generator, but that generator itself takes energy, and I had just barely enough for those 6 days with rationing.

In a real SHTF scenario, I would have to eventually fill jugs at a natural spring a few miles away, every 2 days. SHTF +30 I'd likely run out of gasoline in the vehicles to do that with, adding yet more complications.

Crossing my fingers that a generator didn't shit the bed is more prepared than most people can manage, scarily enough.