My bet is that menial jobs like this will be automated away in the next few decades, but if/when it stops being necessary to work to live, these jobs will come

My bet is that menial jobs like this will be automated away in the next few decades, but if/when it stops being necessary to work to live, these jobs will come back. Think of it like a hobby. At a base level, people need something to keep their minds and bodies busy with. Some guys build massive elaborate train sets, and others become the singular world expert in stocking candy in a London train station.