Society has failed structurally to provide many with the opportunities and tools to keep a viable career path open for their working lifetime.
Why is it society's responsibility to teach you job skills? Society (by which you obviously mean the government) already gives everyone 13 years of education (K-12), and if you walk away from that with no job skill that can't be better done with a servo motor, that is your own fault. I don't think there will be a big revolutionary change if we change the schools to teach for, say, 13 and a half years. People that are willing to learn will continue to do well, and the rest won't.
No, society doesn't have to mean government but it does include it. It's the entire collective, both people and its government. Either way, I used to once agree with you 100% about 5-10 years ago. Since then I've realized I was being naive. Not everyone is smart, ambitious, and young as myself or the group of people I associate myself with. We're talking about 9,000 men and women who may have done nothing but work their factory line, every day, every week, ever year, for what? The past 5, 10, 20, maybe even 40 years? The reality is our brains lose their edge very quickly. It's hard to keep it in good shape when you have a mind numbing job like that. Though no doubt, I'm confident some percentage of those 9,000 did retool/reinvent themselves after losing their jobs. I'm still sure many of them didn't. I'm sorry but the reality is they're going to be left behind. I'm sure the odds of getting left behind increase significantly if they're 50 or older. We need a culture change, we need a society change, we need an education change, we need to at least improve something somewhere. I really don't have a good solution. However, I do know expecting them to do it themselves is exactly why where we are today.
Sure, if we could change the world such that everyone retains their youthful, ambitious, flexible, mind during their entire employment career, regardless of the career path they chose, then yes, that would be the ultimate solution. But that's just not reality.