Interesting concept Red H, Taken to it's extreme though, we should all be retiring around the age of 40 then as our half life has gone.
If you keep up your professional knowledge, as IT workers must do in order to be able to do a reasonable standard of work, then you don't become out-of-date.
One thing I was offering at the interview though, is life experience.
Way to go! What us older workers have/had is the work ethic and the satisfaction of good workmanship. We grew up in a world when our own standards were the only 'level of quality' to be achieved. We didn't have any targets, inspections or quality control. We were it!
I'm in my mid fifties now and still feel I have a lot to offer a prospective employer. Not just my joinery skills, but actual experience of life and work. The Dole office ask, how can I transfer skills I have to other industries/work etc and believe me , being a joiner, it's hard to think how skill at cutting timber,hanging doors, putting window frames in, making joints etc can transfer to other industries. I suppose the ability to work accurately is an asset,
As is the ability to arrive at work in all weather, on time, regularly and reliably. So too is the ability to oversee apprentices, etc, and to be responsible for their safety, work and development.
I was called something like ' a rogue' when I turned the old adage of 'married men are more reliable' on it's head. My colleagues couldn't see why I was arguing that they'd mixed up cause and effect. In my view, the more reliable men were more likely to be married. But being married doesn't make you more reliable.
....but far too many employers these days, would rather set a 20 - 30yr old on than someone in their middle fifties.
They still need us old'uns to set the standards and see the more distant direction and strategies. I remember someone asking "what good are records and data?". I told 'em "If you don't know where you've been, you don't know where you are now and you don't know where you're going, or how to get there, or indeed, if you'll ever arrive, or even know when you have arrived where you were heading for."
Students these days are up in arms about having to pay for their university education,,, If only they realised that 30+ yrs down the line, their education will count for diddly squat in the real world of employment, they'd probably think about forgetting uni and get straight into employment.
One of the more important skills in life, IMO, is to 'learn how learn'. You can teach young 'uns, but you can't make 'em learn.
Often they think that when their education is finished they've nothing more to learn.