I'll make one more try to explain why chemical disruptions matter.
Using a modern computer means being inside, under artificial light, staring at a two dimensional screen, engaging the part of the brain that related to computers; linear thinking especially. Nowadays we spend many hours doing this; it gets really old.
Going outside with a modern electronic device to shoot pictures only partially resolves the problem; you are still thinking in terms of menus, prepackaged exposure software, even auto focus. I have been at music shows where everyone is wasting their time fiddling with menus rather than catching magic moments.
With an old folder, I set the focus and exposure manually, and look around. The breeze passes by, clouds move, my mind wanders, maybe a picture happens. I develop the film and have many options to vary the film's response. I print it in a darkroom using analog techniques. No preset software determined limitations, not much linear thinking (screw the Zone System!).
If the chemicals or materials disappear, no more old school photography. It would be back to the electronic devices and the neurotic modern world. It would not be a radical statement to say that computers have changed how humans relate to the world. Old folders, like hiking boots, fishing poles, and astronomical telescopes, offer a chance to step away from that psychology and re-engage the world on its own terms.
As far as family talking back, I'm married. Capiche?