And even academic degrees per se outside of academic careers aren't a guarantee for higher paying jobs any more, not since large companies started to use having an academic degree as a proxy to legally discriminate against wide swaths of the population, including normally protected classes: it's hard to get academic degrees with a variety of mental health disorders, and many people from socioeconomically disadvantaged castes (immigrants, poor people, people of color) get filtered out by the educational system way before they can even enter university.
So why should one go for an academic degree or otherwise put in unhealthy amounts of effort if you finish at 25-30 and still only get exploitative, underpaid labor? The entire "social contract" framework underpinning our societies is broken at a fundamental level and I don't see the political will to fix any of that unless the boomers are removed from society's high positions.