It's the usual failure of the capitalist system. There is little benefit to investing in younger staff and training them. Once they gain skills they want more money, so either you pay them or they leave. Companies prefer to just hire experienced staff, and now can try to replace the graduates with AI.
It used to be the norm to train people out of skill and employ them for decades. Now they expect the graduate to train themselves, at their own expense, and treat them as disposable.
While it is easy to blame everything on capitalism, as if the word is uttered, and the wise will simply nod in agreement, it isn't quite that simple.
Yes, once a person gains more workplace skills, they will want to be compensated. So if they aren't, they will go to a place with better compensation.
The only cure for that is pure communism, where are careers are paid the same, and everyone from the newest to most experienced are paid the same.
That never even happened with the attempts at Communism that were tried.
I think the issue of wanting experienced help, and paying them for it may have had a genesis when the first crop of millennials hit the professional workplace. I cannot vouch for everywhere, but our experience matched what we were hearing from other places:
Entitlement, expectation of rapid promotion for basic expectations, belief that they and they alone knew everything, not those stodgy old people. The stodgy old people turned out to know a lot more than they did. The concept that work was a sprint, not a marathon. That sprint concept was more prevalent in the women.
There are exceptions. Two of the best employees we got were millennial's and women. But most of the millennials we hired weren't worth it. 90 percent just left, moved back in with mommy and daddy, or in one case with Grandma because Daddy grew a spine and said "time to grow up".
Finally, they refused to take telling. They found any constructive criticism to cause great upset. An example is one guy we hired who for some reason was petrified of me. As much as I tried, he's still freak out. Finally, I relayed assignments to him via on of the women co-workers.
And the clash between AI, and the demands to WFH for first hires is just a non-starter. A person who has never held a job is going to have a lot of issues under those conditions.