I have had this conversation with friends for decades. Most of them deny that cash is threatened. They prefer cards/digital over physical cash & could care less about things like privacy, service charges (& whether retail/service even offers a cash payment option). In fact, most believe that they're gaining with "cash-back" incentives & some even find cash annoying. If I oppose them with my POV they just roll their eyes & change the subject.
I have always been "pro-cash" because I dislike debt & cash use has forced me
to spend what I have on what I need rather than simply on "what I want." I believe in delayed gratification & that cash can co-exist with digital payments. I have lived relatively debt-free, can travel & retired far sooner than I expected. I really find it appalling that there's an organization out there (the UN backed Better Than Cash Alliance/
BTCA) which actively threatens our liberty to use cash.
Here's another thread on Numista which covers some of the perils of losing cash to digital/private electronic payments:
https://en.numista.com/forum/topic50017.html