What's far more likely than 3d printed prosthetics becoming fashonable is people just rolling over and accepting the distopian surveilance state.
I can't even get most of my family to use Signal to prevent Facebook from reading their private messages, what could happen to convince them to go full cyberpunk?
If everyone you know uses secure messaging apps, youre in a bubble; their adoption rate is very small.
Of the people I know, even those who use Signal/Matrix still use Chrome and GMail/Docs/Drive. They have a long way to go before they don prosthetic noses.