Earlier quoted context omitted.
A young man in his 20's starting his career will never know understand how things worked without the tech. A man in his 30's see's an opportunity to boost his career, and an older man in his 50's see's a long fought career's worth of expertise being thrown away.
You don't need to put an apostrophe before every s that ends a word. Only ones that are possessive, like "career's" It's 20s, not 20's. It's sees, not see's.
This might be an autocorrect issue. My iphone 7 would do this rampantly with the swipe keyboard to the point where i concluded that no one at apple actually used it.