Postal workers. It seems the mail industry is already dying anyway. No one needs to write letters anymore, it’ all done online. Snail mail has a charm to that can’t be replaced, though. I mean, what, are people going to dig through their boxes of emails that their husband sent them when they first started dating twenty years from now?
Though it’s possible there will always be a need for workers in the sex industry, with all the new technology they’re working on involving virtual reality, prostitutes could become totally obsolete and unneeded.
I think you were mostly asking for jobs, not careers, but..
Architecture. Or at least, in the way most of us think of it. It’s becoming less about how beautiful of a building you can design and more about designing generic buildings that function well for what they’re needed for. That’s why so many old buildings look amazing and unique, but most modern buildings are boring and all the same design.