https://gen.medium.com/why-older-peo...e-8f918529009a
...just to name one article about this "issue" in general...heaps of them on google...it's not the younger generation getting worse...it's all of us getting old;-) Some are apparently suffering from this early on ;-)
Regarding machining specifically... well.... thats capitalism... nothing but profit matters....and work moves to where the biggest profit can be made...