The shifting timeline

We are still hearing complains that above 40 years need not apply for jobs and these relatively young and healthy people are getting angry and desperate. I call them young and healthy because the timeline has changed and many are not realising this. Today's 40 is yesterday's 30. And many of them are having kids in primary schools. So far the only organisation that is taking this into consideration is the civil service. More and more civil servants are working past 60, with some noticeably past 70 and 80. Why is it that the private sector is refusing to acknowledge or recognise this shift? In the 60s and 70s, people get married at 21. Today the marrying age is 30 or 35. Then people retired at 55 and died at 60. Today people die at 80 or 90 but retire at 55 with a few exceptions. Then people started to work at 16 or 18, after O or A level. Today they start work at 23/25 or later, after university and NS for the guys. They used to make babies at 18 or below 20. Now many only do this after 30. The anomaly is now a reality. The prime of a person's life is 60 and he/she can go on to 80 or 90, another 20 years to go at least. 30 is still a child wet behind the years. With improving living condition, food and health, and medical careful, people are definitely healthier today than yesterday. When will the human resource practitioners and employers understand this shift in timeline and adjust their expectations? Perhaps we are in a state of transition. The first batch of healthy 60s will come from the baby boomers, or maybe the later baby boomers. Or shall we bring out all the million dollar 'Yodas' in the public and private sector to prove this point? They are many of these hiding in their top floor or penthouse offices and calling the shots, still alive and kicking in their 70s, 80s and perhaps 90s.