Because truck drivers and baristas have perfectly good reasons to oppose automation in their lines of work. The economic model of the West is vested in self-interest, and this is its natural outcome. If you

  - want to have a job
  - don't want to pay to retrain
  - don't want to become unemployed (and then have to compete for another job)

you will oppose automation. Automation is pushed from the top down - the people at the bottom certainly don't want it without a strong guarantee that they're going to be better off for it, and not in some hand-wavey "social progress" way.