This was found specifically to be the case for American men in a Boston Fed study last month: as the wage paid for trade-skill jobs shrinks over time relative to the wages paid to school-degree jobs, men increasingly refuse to work trade-skill jobs.
> The evidence from this study shows that the widening earnings gap between highly and less skilled workers over the last four decades is closely connected with the decreasing labor supply of prime-age men
> The decline in relative earnings is associated with a 0.49 percentage point increase in the exit rate, accounting for 44 percent of the total growth in the exit rate among non-college men over the 1980–2019 period.
https://www.bostonfed.org/publications/research-department-w...
Caveats. There are almost certainly further coincident reasons for the decrease in “blue collar” trade-skills workforce, both for men and for all genders; this particularly study should not be considered an exclusive factor, merely a relevant one. Please consider the constraints documented at that link before overextrapolating; for example, “non-Hispanic” which rules out biological causes, and so on.
Neither is the apprentice that probably is doing half the work.
Talked to the guy doing the painting, he was getting $80/hr.
(Related: IMHO my neighbor sucks at finding affordable prices for painters!)