On the contrary, mortality improved with increasing age at retirement for people from both high and low economic groups.

The mortality rates among people around age 60 is about the same in both countries. But we don't do a better job at preventing people from getting sick in the first place.

The hardest people to convince they are at retirement age are children at bedtime

It's more a stage than an age. The concept of retirement at age 65 is going out the window. Many people are opting to stop working earlier than later. 65 is an irrelevant limit now.

How long can you broadcast on radio? Is there a mandatory retirement age? Can you go on forever?

If you're retirement age or nearing your retirement age, you need to be a little more reserved.