Yeah, I think a lot of people miss that these jobs opened up when the population was growing much faster due to the baby boom, plus people are living longer. Things have changed since the 1950s-80s.
Teachers who just take public school jobs rather than start local learning programs and nurses who idle in hospitals rather than start some in-home nursing service for their community, academics whose careers stalled due to progress sit there reliving the same old routine blocking newcomers from moving through the pipeline
Whole lot of ossified minds in industry who need to get over coddling some sacrosanct story and identity and move along