[jfyi]

Humans who aren't skilled require training regardless of how "unskilled" the task is.

Humans that are chronically unskilled also don't learn well, somewhat as a rule.

Humans that don't make much money have a high turnover rate from burnout. Additionally, those that can learn typically leave for greener pastures.

The bar isn't terribly high. Efficiency of scale in production will solve this eventually. I think the likely outcome is robots building themselves first.