I find it a bit uncomfortable with the repetitive use of "low-skill" in the article. You can actually be skillful in areas outside of STEM, finance and business.
"Skill," in economics, is a function of training time. "Occupations that require less than 12 months of training and" have a high incidence of employees "with a high school diploma or less" were defined as "low-skill" going back to the 60s [1].
High-skill workers are expensive to make, expensive to hire and expensive to replace. The tolerable level of turnover amongst high-skill staff, to the average company, is low. (At least in comparison with low-skill staff, who can be more-easily replaced.)
