Paper has no downtime.
In times of disaster, the people welding paper along with the people who can trade on their street cred, familiar friends, family, will get stuff, do necessary business.
Everyone else will be essentially panhandling.
Mind you, not a damn thing wrong with panhandling. That is not a crime.
My point is to avoid having to do that where possible and practical.
This is the same thing I am against a cashless society where the society no longer accept physical cash. And in 2012, and later 2014 when Apple Pay was introduced all the way to 2017, 99% of HN were in support of getting rid of physical cash.