Delivery drivers and train conductors are both headed for automation. I think trains are mostly already there. They mostly have a human for emergencies, as far as I know.

This is something I’ve been thinking about, but nothing speaks to me enough to jump ship. Anything I think of also means taking a huge pay cut, so it seems to make sense to stay on the current track until the wheels fall off to maximize my savings to soften the transition. It’s also possible that I may never need to switch careers before retirement, so it could be a moot point.