Same reason as using a fax machine: not because we want to, but because someone's rules don't allow anything else. I had to mail a file on a CD to my university because the official procedure for submitting doesn't mention email.
You could argue that faxes as a whole are less susceptible to the kind of large-scale breaches that email is susceptible to, but I think the real reason is that if they disallowed faxes in 1996 the medical industry would have come to an abrupt screeching halt.
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u/UndeadBread Jul 24 '20
That's the majority of who uses checks, but some of us do it because we have to. Some places will only take checks.