Cash = chamber pot / outhouse Electronic payments = modern plumbing
People shat for millennia without modern plumbing. Installing and maintaining modern plumbing often requires external expertise who will wish to be paid for their services. In developed countries, the modern plumbing also needs to connect to public infrastructure and comply with a variety of regulations.
By choosing modern plumbing over chamber pots, we got rid of some issues pretty much entirely (monetary analogies in parentheses)...
- No one has to empty the shit bucket / shovel dirt in the hole (the business does not need to send an employee to the bank with a money bag)
- No one has to smell the shit of the previous user/customer (no one has to handle physical objects that may have had an interesting and/or disgusting journey prior [0] [1])
- Massive reduction in fecal-borne illnesses (reduced employee theft, fraud potential)
Day to day, I'm sure the outhouse is "cheaper" than toilets. I'll take all the benefits of modern plumbing.
[0] https://www.youtube.com/watch?v=f9aM_dT5VMI [1] https://en.wikipedia.org/wiki/Contaminated_currency